{"schema":1,"coreVersion":"1.0.1","peripheryVersion":"1.1.0-beta.0","coreCompiler":"0.5.16+commit.9c3226ce","coreInput":{"language":"Solidity","sources":{"contracts/UniswapV2ERC20.sol":{"content":"pragma solidity =0.5.16;\n\nimport './interfaces/IUniswapV2ERC20.sol';\nimport './libraries/SafeMath.sol';\n\ncontract UniswapV2ERC20 is IUniswapV2ERC20 {\n    using SafeMath for uint;\n\n    string public constant name = 'Uniswap V2';\n    string public constant symbol = 'UNI-V2';\n    uint8 public constant decimals = 18;\n    uint  public totalSupply;\n    mapping(address => uint) public balanceOf;\n    mapping(address => mapping(address => uint)) public allowance;\n\n    bytes32 public DOMAIN_SEPARATOR;\n    // keccak256(\"Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)\");\n    bytes32 public constant PERMIT_TYPEHASH = 0x6e71edae12b1b97f4d1f60370fef10105fa2faae0126114a169c64845d6126c9;\n    mapping(address => uint) public nonces;\n\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    constructor() public {\n        uint chainId;\n        assembly {\n            chainId := chainid\n        }\n        DOMAIN_SEPARATOR = keccak256(\n            abi.encode(\n                keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),\n                keccak256(bytes(name)),\n                keccak256(bytes('1')),\n                chainId,\n                address(this)\n            )\n        );\n    }\n\n    function _mint(address to, uint value) internal {\n        totalSupply = totalSupply.add(value);\n        balanceOf[to] = balanceOf[to].add(value);\n        emit Transfer(address(0), to, value);\n    }\n\n    function _burn(address from, uint value) internal {\n        balanceOf[from] = balanceOf[from].sub(value);\n        totalSupply = totalSupply.sub(value);\n        emit Transfer(from, address(0), value);\n    }\n\n    function _approve(address owner, address spender, uint value) private {\n        allowance[owner][spender] = value;\n        emit Approval(owner, spender, value);\n    }\n\n    function _transfer(address from, address to, uint value) private {\n        balanceOf[from] = balanceOf[from].sub(value);\n        balanceOf[to] = balanceOf[to].add(value);\n        emit Transfer(from, to, value);\n    }\n\n    function approve(address spender, uint value) external returns (bool) {\n        _approve(msg.sender, spender, value);\n        return true;\n    }\n\n    function transfer(address to, uint value) external returns (bool) {\n        _transfer(msg.sender, to, value);\n        return true;\n    }\n\n    function transferFrom(address from, address to, uint value) external returns (bool) {\n        if (allowance[from][msg.sender] != uint(-1)) {\n            allowance[from][msg.sender] = allowance[from][msg.sender].sub(value);\n        }\n        _transfer(from, to, value);\n        return true;\n    }\n\n    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external {\n        require(deadline >= block.timestamp, 'UniswapV2: EXPIRED');\n        bytes32 digest = keccak256(\n            abi.encodePacked(\n                '\\x19\\x01',\n                DOMAIN_SEPARATOR,\n                keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, nonces[owner]++, deadline))\n            )\n        );\n        address recoveredAddress = ecrecover(digest, v, r, s);\n        require(recoveredAddress != address(0) && recoveredAddress == owner, 'UniswapV2: INVALID_SIGNATURE');\n        _approve(owner, spender, value);\n    }\n}\n"},"contracts/UniswapV2Factory.sol":{"content":"pragma solidity =0.5.16;\n\nimport './interfaces/IUniswapV2Factory.sol';\nimport './UniswapV2Pair.sol';\n\ncontract UniswapV2Factory is IUniswapV2Factory {\n    address public feeTo;\n    address public feeToSetter;\n\n    mapping(address => mapping(address => address)) public getPair;\n    address[] public allPairs;\n\n    event PairCreated(address indexed token0, address indexed token1, address pair, uint);\n\n    constructor(address _feeToSetter) public {\n        feeToSetter = _feeToSetter;\n    }\n\n    function allPairsLength() external view returns (uint) {\n        return allPairs.length;\n    }\n\n    function createPair(address tokenA, address tokenB) external returns (address pair) {\n        require(tokenA != tokenB, 'UniswapV2: IDENTICAL_ADDRESSES');\n        (address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);\n        require(token0 != address(0), 'UniswapV2: ZERO_ADDRESS');\n        require(getPair[token0][token1] == address(0), 'UniswapV2: PAIR_EXISTS'); // single check is sufficient\n        bytes memory bytecode = type(UniswapV2Pair).creationCode;\n        bytes32 salt = keccak256(abi.encodePacked(token0, token1));\n        assembly {\n            pair := create2(0, add(bytecode, 32), mload(bytecode), salt)\n        }\n        IUniswapV2Pair(pair).initialize(token0, token1);\n        getPair[token0][token1] = pair;\n        getPair[token1][token0] = pair; // populate mapping in the reverse direction\n        allPairs.push(pair);\n        emit PairCreated(token0, token1, pair, allPairs.length);\n    }\n\n    function setFeeTo(address _feeTo) external {\n        require(msg.sender == feeToSetter, 'UniswapV2: FORBIDDEN');\n        feeTo = _feeTo;\n    }\n\n    function setFeeToSetter(address _feeToSetter) external {\n        require(msg.sender == feeToSetter, 'UniswapV2: FORBIDDEN');\n        feeToSetter = _feeToSetter;\n    }\n}\n"},"contracts/UniswapV2Pair.sol":{"content":"pragma solidity =0.5.16;\n\nimport './interfaces/IUniswapV2Pair.sol';\nimport './UniswapV2ERC20.sol';\nimport './libraries/Math.sol';\nimport './libraries/UQ112x112.sol';\nimport './interfaces/IERC20.sol';\nimport './interfaces/IUniswapV2Factory.sol';\nimport './interfaces/IUniswapV2Callee.sol';\n\ncontract UniswapV2Pair is IUniswapV2Pair, UniswapV2ERC20 {\n    using SafeMath  for uint;\n    using UQ112x112 for uint224;\n\n    uint public constant MINIMUM_LIQUIDITY = 10**3;\n    bytes4 private constant SELECTOR = bytes4(keccak256(bytes('transfer(address,uint256)')));\n\n    address public factory;\n    address public token0;\n    address public token1;\n\n    uint112 private reserve0;           // uses single storage slot, accessible via getReserves\n    uint112 private reserve1;           // uses single storage slot, accessible via getReserves\n    uint32  private blockTimestampLast; // uses single storage slot, accessible via getReserves\n\n    uint public price0CumulativeLast;\n    uint public price1CumulativeLast;\n    uint public kLast; // reserve0 * reserve1, as of immediately after the most recent liquidity event\n\n    uint private unlocked = 1;\n    modifier lock() {\n        require(unlocked == 1, 'UniswapV2: LOCKED');\n        unlocked = 0;\n        _;\n        unlocked = 1;\n    }\n\n    function getReserves() public view returns (uint112 _reserve0, uint112 _reserve1, uint32 _blockTimestampLast) {\n        _reserve0 = reserve0;\n        _reserve1 = reserve1;\n        _blockTimestampLast = blockTimestampLast;\n    }\n\n    function _safeTransfer(address token, address to, uint value) private {\n        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(SELECTOR, to, value));\n        require(success && (data.length == 0 || abi.decode(data, (bool))), 'UniswapV2: TRANSFER_FAILED');\n    }\n\n    event Mint(address indexed sender, uint amount0, uint amount1);\n    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);\n    event Swap(\n        address indexed sender,\n        uint amount0In,\n        uint amount1In,\n        uint amount0Out,\n        uint amount1Out,\n        address indexed to\n    );\n    event Sync(uint112 reserve0, uint112 reserve1);\n\n    constructor() public {\n        factory = msg.sender;\n    }\n\n    // called once by the factory at time of deployment\n    function initialize(address _token0, address _token1) external {\n        require(msg.sender == factory, 'UniswapV2: FORBIDDEN'); // sufficient check\n        token0 = _token0;\n        token1 = _token1;\n    }\n\n    // update reserves and, on the first call per block, price accumulators\n    function _update(uint balance0, uint balance1, uint112 _reserve0, uint112 _reserve1) private {\n        require(balance0 <= uint112(-1) && balance1 <= uint112(-1), 'UniswapV2: OVERFLOW');\n        uint32 blockTimestamp = uint32(block.timestamp % 2**32);\n        uint32 timeElapsed = blockTimestamp - blockTimestampLast; // overflow is desired\n        if (timeElapsed > 0 && _reserve0 != 0 && _reserve1 != 0) {\n            // * never overflows, and + overflow is desired\n            price0CumulativeLast += uint(UQ112x112.encode(_reserve1).uqdiv(_reserve0)) * timeElapsed;\n            price1CumulativeLast += uint(UQ112x112.encode(_reserve0).uqdiv(_reserve1)) * timeElapsed;\n        }\n        reserve0 = uint112(balance0);\n        reserve1 = uint112(balance1);\n        blockTimestampLast = blockTimestamp;\n        emit Sync(reserve0, reserve1);\n    }\n\n    // if fee is on, mint liquidity equivalent to 1/6th of the growth in sqrt(k)\n    function _mintFee(uint112 _reserve0, uint112 _reserve1) private returns (bool feeOn) {\n        address feeTo = IUniswapV2Factory(factory).feeTo();\n        feeOn = feeTo != address(0);\n        uint _kLast = kLast; // gas savings\n        if (feeOn) {\n            if (_kLast != 0) {\n                uint rootK = Math.sqrt(uint(_reserve0).mul(_reserve1));\n                uint rootKLast = Math.sqrt(_kLast);\n                if (rootK > rootKLast) {\n                    uint numerator = totalSupply.mul(rootK.sub(rootKLast));\n                    uint denominator = rootK.mul(5).add(rootKLast);\n                    uint liquidity = numerator / denominator;\n                    if (liquidity > 0) _mint(feeTo, liquidity);\n                }\n            }\n        } else if (_kLast != 0) {\n            kLast = 0;\n        }\n    }\n\n    // this low-level function should be called from a contract which performs important safety checks\n    function mint(address to) external lock returns (uint liquidity) {\n        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings\n        uint balance0 = IERC20(token0).balanceOf(address(this));\n        uint balance1 = IERC20(token1).balanceOf(address(this));\n        uint amount0 = balance0.sub(_reserve0);\n        uint amount1 = balance1.sub(_reserve1);\n\n        bool feeOn = _mintFee(_reserve0, _reserve1);\n        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee\n        if (_totalSupply == 0) {\n            liquidity = Math.sqrt(amount0.mul(amount1)).sub(MINIMUM_LIQUIDITY);\n           _mint(address(0), MINIMUM_LIQUIDITY); // permanently lock the first MINIMUM_LIQUIDITY tokens\n        } else {\n            liquidity = Math.min(amount0.mul(_totalSupply) / _reserve0, amount1.mul(_totalSupply) / _reserve1);\n        }\n        require(liquidity > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_MINTED');\n        _mint(to, liquidity);\n\n        _update(balance0, balance1, _reserve0, _reserve1);\n        if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date\n        emit Mint(msg.sender, amount0, amount1);\n    }\n\n    // this low-level function should be called from a contract which performs important safety checks\n    function burn(address to) external lock returns (uint amount0, uint amount1) {\n        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings\n        address _token0 = token0;                                // gas savings\n        address _token1 = token1;                                // gas savings\n        uint balance0 = IERC20(_token0).balanceOf(address(this));\n        uint balance1 = IERC20(_token1).balanceOf(address(this));\n        uint liquidity = balanceOf[address(this)];\n\n        bool feeOn = _mintFee(_reserve0, _reserve1);\n        uint _totalSupply = totalSupply; // gas savings, must be defined here since totalSupply can update in _mintFee\n        amount0 = liquidity.mul(balance0) / _totalSupply; // using balances ensures pro-rata distribution\n        amount1 = liquidity.mul(balance1) / _totalSupply; // using balances ensures pro-rata distribution\n        require(amount0 > 0 && amount1 > 0, 'UniswapV2: INSUFFICIENT_LIQUIDITY_BURNED');\n        _burn(address(this), liquidity);\n        _safeTransfer(_token0, to, amount0);\n        _safeTransfer(_token1, to, amount1);\n        balance0 = IERC20(_token0).balanceOf(address(this));\n        balance1 = IERC20(_token1).balanceOf(address(this));\n\n        _update(balance0, balance1, _reserve0, _reserve1);\n        if (feeOn) kLast = uint(reserve0).mul(reserve1); // reserve0 and reserve1 are up-to-date\n        emit Burn(msg.sender, amount0, amount1, to);\n    }\n\n    // this low-level function should be called from a contract which performs important safety checks\n    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external lock {\n        require(amount0Out > 0 || amount1Out > 0, 'UniswapV2: INSUFFICIENT_OUTPUT_AMOUNT');\n        (uint112 _reserve0, uint112 _reserve1,) = getReserves(); // gas savings\n        require(amount0Out < _reserve0 && amount1Out < _reserve1, 'UniswapV2: INSUFFICIENT_LIQUIDITY');\n\n        uint balance0;\n        uint balance1;\n        { // scope for _token{0,1}, avoids stack too deep errors\n        address _token0 = token0;\n        address _token1 = token1;\n        require(to != _token0 && to != _token1, 'UniswapV2: INVALID_TO');\n        if (amount0Out > 0) _safeTransfer(_token0, to, amount0Out); // optimistically transfer tokens\n        if (amount1Out > 0) _safeTransfer(_token1, to, amount1Out); // optimistically transfer tokens\n        if (data.length > 0) IUniswapV2Callee(to).uniswapV2Call(msg.sender, amount0Out, amount1Out, data);\n        balance0 = IERC20(_token0).balanceOf(address(this));\n        balance1 = IERC20(_token1).balanceOf(address(this));\n        }\n        uint amount0In = balance0 > _reserve0 - amount0Out ? balance0 - (_reserve0 - amount0Out) : 0;\n        uint amount1In = balance1 > _reserve1 - amount1Out ? balance1 - (_reserve1 - amount1Out) : 0;\n        require(amount0In > 0 || amount1In > 0, 'UniswapV2: INSUFFICIENT_INPUT_AMOUNT');\n        { // scope for reserve{0,1}Adjusted, avoids stack too deep errors\n        uint balance0Adjusted = balance0.mul(1000).sub(amount0In.mul(3));\n        uint balance1Adjusted = balance1.mul(1000).sub(amount1In.mul(3));\n        require(balance0Adjusted.mul(balance1Adjusted) >= uint(_reserve0).mul(_reserve1).mul(1000**2), 'UniswapV2: K');\n        }\n\n        _update(balance0, balance1, _reserve0, _reserve1);\n        emit Swap(msg.sender, amount0In, amount1In, amount0Out, amount1Out, to);\n    }\n\n    // force balances to match reserves\n    function skim(address to) external lock {\n        address _token0 = token0; // gas savings\n        address _token1 = token1; // gas savings\n        _safeTransfer(_token0, to, IERC20(_token0).balanceOf(address(this)).sub(reserve0));\n        _safeTransfer(_token1, to, IERC20(_token1).balanceOf(address(this)).sub(reserve1));\n    }\n\n    // force reserves to match balances\n    function sync() external lock {\n        _update(IERC20(token0).balanceOf(address(this)), IERC20(token1).balanceOf(address(this)), reserve0, reserve1);\n    }\n}\n"},"contracts/interfaces/IERC20.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IERC20 {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external view returns (string memory);\n    function symbol() external view returns (string memory);\n    function decimals() external view returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n}\n"},"contracts/interfaces/IUniswapV2Callee.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IUniswapV2Callee {\n    function uniswapV2Call(address sender, uint amount0, uint amount1, bytes calldata data) external;\n}\n"},"contracts/interfaces/IUniswapV2ERC20.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IUniswapV2ERC20 {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external pure returns (string memory);\n    function symbol() external pure returns (string memory);\n    function decimals() external pure returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n    function PERMIT_TYPEHASH() external pure returns (bytes32);\n    function nonces(address owner) external view returns (uint);\n\n    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;\n}\n"},"contracts/interfaces/IUniswapV2Factory.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IUniswapV2Factory {\n    event PairCreated(address indexed token0, address indexed token1, address pair, uint);\n\n    function feeTo() external view returns (address);\n    function feeToSetter() external view returns (address);\n\n    function getPair(address tokenA, address tokenB) external view returns (address pair);\n    function allPairs(uint) external view returns (address pair);\n    function allPairsLength() external view returns (uint);\n\n    function createPair(address tokenA, address tokenB) external returns (address pair);\n\n    function setFeeTo(address) external;\n    function setFeeToSetter(address) external;\n}\n"},"contracts/interfaces/IUniswapV2Pair.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IUniswapV2Pair {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external pure returns (string memory);\n    function symbol() external pure returns (string memory);\n    function decimals() external pure returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n    function PERMIT_TYPEHASH() external pure returns (bytes32);\n    function nonces(address owner) external view returns (uint);\n\n    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;\n\n    event Mint(address indexed sender, uint amount0, uint amount1);\n    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);\n    event Swap(\n        address indexed sender,\n        uint amount0In,\n        uint amount1In,\n        uint amount0Out,\n        uint amount1Out,\n        address indexed to\n    );\n    event Sync(uint112 reserve0, uint112 reserve1);\n\n    function MINIMUM_LIQUIDITY() external pure returns (uint);\n    function factory() external view returns (address);\n    function token0() external view returns (address);\n    function token1() external view returns (address);\n    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n    function price0CumulativeLast() external view returns (uint);\n    function price1CumulativeLast() external view returns (uint);\n    function kLast() external view returns (uint);\n\n    function mint(address to) external returns (uint liquidity);\n    function burn(address to) external returns (uint amount0, uint amount1);\n    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;\n    function skim(address to) external;\n    function sync() external;\n\n    function initialize(address, address) external;\n}\n"},"contracts/libraries/Math.sol":{"content":"pragma solidity =0.5.16;\n\n// a library for performing various math operations\n\nlibrary Math {\n    function min(uint x, uint y) internal pure returns (uint z) {\n        z = x < y ? x : y;\n    }\n\n    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)\n    function sqrt(uint y) internal pure returns (uint z) {\n        if (y > 3) {\n            z = y;\n            uint x = y / 2 + 1;\n            while (x < z) {\n                z = x;\n                x = (y / x + x) / 2;\n            }\n        } else if (y != 0) {\n            z = 1;\n        }\n    }\n}\n"},"contracts/libraries/SafeMath.sol":{"content":"pragma solidity =0.5.16;\n\n// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)\n\nlibrary SafeMath {\n    function add(uint x, uint y) internal pure returns (uint z) {\n        require((z = x + y) >= x, 'ds-math-add-overflow');\n    }\n\n    function sub(uint x, uint y) internal pure returns (uint z) {\n        require((z = x - y) <= x, 'ds-math-sub-underflow');\n    }\n\n    function mul(uint x, uint y) internal pure returns (uint z) {\n        require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');\n    }\n}\n"},"contracts/libraries/UQ112x112.sol":{"content":"pragma solidity =0.5.16;\n\n// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))\n\n// range: [0, 2**112 - 1]\n// resolution: 1 / 2**112\n\nlibrary UQ112x112 {\n    uint224 constant Q112 = 2**112;\n\n    // encode a uint112 as a UQ112x112\n    function encode(uint112 y) internal pure returns (uint224 z) {\n        z = uint224(y) * Q112; // never overflows\n    }\n\n    // divide a UQ112x112 by a uint112, returning a UQ112x112\n    function uqdiv(uint224 x, uint112 y) internal pure returns (uint224 z) {\n        z = x / uint224(y);\n    }\n}\n"}},"settings":{"evmVersion":"istanbul","libraries":{},"optimizer":{"enabled":true,"runs":999999},"remappings":[],"outputSelection":{"*":{"*":["abi","evm.bytecode.object","evm.deployedBytecode.object"]}}}},"routerCompiler":"0.6.6+commit.6c089d02","routerInput":{"language":"Solidity","sources":{"contracts/UniswapV2Router02.sol":{"content":"pragma solidity =0.6.6;\n\nimport '@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol';\nimport '@uniswap/lib/contracts/libraries/TransferHelper.sol';\n\nimport './interfaces/IUniswapV2Router02.sol';\nimport './libraries/UniswapV2Library.sol';\nimport './libraries/SafeMath.sol';\nimport './interfaces/IERC20.sol';\nimport './interfaces/IWETH.sol';\n\ncontract UniswapV2Router02 is IUniswapV2Router02 {\n    using SafeMath for uint;\n\n    address public immutable override factory;\n    address public immutable override WETH;\n\n    modifier ensure(uint deadline) {\n        require(deadline >= block.timestamp, 'UniswapV2Router: EXPIRED');\n        _;\n    }\n\n    constructor(address _factory, address _WETH) public {\n        factory = _factory;\n        WETH = _WETH;\n    }\n\n    receive() external payable {\n        assert(msg.sender == WETH); // only accept ETH via fallback from the WETH contract\n    }\n\n    // **** ADD LIQUIDITY ****\n    function _addLiquidity(\n        address tokenA,\n        address tokenB,\n        uint amountADesired,\n        uint amountBDesired,\n        uint amountAMin,\n        uint amountBMin\n    ) internal virtual returns (uint amountA, uint amountB) {\n        // create the pair if it doesn't exist yet\n        if (IUniswapV2Factory(factory).getPair(tokenA, tokenB) == address(0)) {\n            IUniswapV2Factory(factory).createPair(tokenA, tokenB);\n        }\n        (uint reserveA, uint reserveB) = UniswapV2Library.getReserves(factory, tokenA, tokenB);\n        if (reserveA == 0 && reserveB == 0) {\n            (amountA, amountB) = (amountADesired, amountBDesired);\n        } else {\n            uint amountBOptimal = UniswapV2Library.quote(amountADesired, reserveA, reserveB);\n            if (amountBOptimal <= amountBDesired) {\n                require(amountBOptimal >= amountBMin, 'UniswapV2Router: INSUFFICIENT_B_AMOUNT');\n                (amountA, amountB) = (amountADesired, amountBOptimal);\n            } else {\n                uint amountAOptimal = UniswapV2Library.quote(amountBDesired, reserveB, reserveA);\n                assert(amountAOptimal <= amountADesired);\n                require(amountAOptimal >= amountAMin, 'UniswapV2Router: INSUFFICIENT_A_AMOUNT');\n                (amountA, amountB) = (amountAOptimal, amountBDesired);\n            }\n        }\n    }\n    function addLiquidity(\n        address tokenA,\n        address tokenB,\n        uint amountADesired,\n        uint amountBDesired,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline\n    ) external virtual override ensure(deadline) returns (uint amountA, uint amountB, uint liquidity) {\n        (amountA, amountB) = _addLiquidity(tokenA, tokenB, amountADesired, amountBDesired, amountAMin, amountBMin);\n        address pair = UniswapV2Library.pairFor(factory, tokenA, tokenB);\n        TransferHelper.safeTransferFrom(tokenA, msg.sender, pair, amountA);\n        TransferHelper.safeTransferFrom(tokenB, msg.sender, pair, amountB);\n        liquidity = IUniswapV2Pair(pair).mint(to);\n    }\n    function addLiquidityETH(\n        address token,\n        uint amountTokenDesired,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) external virtual override payable ensure(deadline) returns (uint amountToken, uint amountETH, uint liquidity) {\n        (amountToken, amountETH) = _addLiquidity(\n            token,\n            WETH,\n            amountTokenDesired,\n            msg.value,\n            amountTokenMin,\n            amountETHMin\n        );\n        address pair = UniswapV2Library.pairFor(factory, token, WETH);\n        TransferHelper.safeTransferFrom(token, msg.sender, pair, amountToken);\n        IWETH(WETH).deposit{value: amountETH}();\n        assert(IWETH(WETH).transfer(pair, amountETH));\n        liquidity = IUniswapV2Pair(pair).mint(to);\n        // refund dust eth, if any\n        if (msg.value > amountETH) TransferHelper.safeTransferETH(msg.sender, msg.value - amountETH);\n    }\n\n    // **** REMOVE LIQUIDITY ****\n    function removeLiquidity(\n        address tokenA,\n        address tokenB,\n        uint liquidity,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline\n    ) public virtual override ensure(deadline) returns (uint amountA, uint amountB) {\n        address pair = UniswapV2Library.pairFor(factory, tokenA, tokenB);\n        IUniswapV2Pair(pair).transferFrom(msg.sender, pair, liquidity); // send liquidity to pair\n        (uint amount0, uint amount1) = IUniswapV2Pair(pair).burn(to);\n        (address token0,) = UniswapV2Library.sortTokens(tokenA, tokenB);\n        (amountA, amountB) = tokenA == token0 ? (amount0, amount1) : (amount1, amount0);\n        require(amountA >= amountAMin, 'UniswapV2Router: INSUFFICIENT_A_AMOUNT');\n        require(amountB >= amountBMin, 'UniswapV2Router: INSUFFICIENT_B_AMOUNT');\n    }\n    function removeLiquidityETH(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) public virtual override ensure(deadline) returns (uint amountToken, uint amountETH) {\n        (amountToken, amountETH) = removeLiquidity(\n            token,\n            WETH,\n            liquidity,\n            amountTokenMin,\n            amountETHMin,\n            address(this),\n            deadline\n        );\n        TransferHelper.safeTransfer(token, to, amountToken);\n        IWETH(WETH).withdraw(amountETH);\n        TransferHelper.safeTransferETH(to, amountETH);\n    }\n    function removeLiquidityWithPermit(\n        address tokenA,\n        address tokenB,\n        uint liquidity,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external virtual override returns (uint amountA, uint amountB) {\n        address pair = UniswapV2Library.pairFor(factory, tokenA, tokenB);\n        uint value = approveMax ? uint(-1) : liquidity;\n        IUniswapV2Pair(pair).permit(msg.sender, address(this), value, deadline, v, r, s);\n        (amountA, amountB) = removeLiquidity(tokenA, tokenB, liquidity, amountAMin, amountBMin, to, deadline);\n    }\n    function removeLiquidityETHWithPermit(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external virtual override returns (uint amountToken, uint amountETH) {\n        address pair = UniswapV2Library.pairFor(factory, token, WETH);\n        uint value = approveMax ? uint(-1) : liquidity;\n        IUniswapV2Pair(pair).permit(msg.sender, address(this), value, deadline, v, r, s);\n        (amountToken, amountETH) = removeLiquidityETH(token, liquidity, amountTokenMin, amountETHMin, to, deadline);\n    }\n\n    // **** REMOVE LIQUIDITY (supporting fee-on-transfer tokens) ****\n    function removeLiquidityETHSupportingFeeOnTransferTokens(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) public virtual override ensure(deadline) returns (uint amountETH) {\n        (, amountETH) = removeLiquidity(\n            token,\n            WETH,\n            liquidity,\n            amountTokenMin,\n            amountETHMin,\n            address(this),\n            deadline\n        );\n        TransferHelper.safeTransfer(token, to, IERC20(token).balanceOf(address(this)));\n        IWETH(WETH).withdraw(amountETH);\n        TransferHelper.safeTransferETH(to, amountETH);\n    }\n    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external virtual override returns (uint amountETH) {\n        address pair = UniswapV2Library.pairFor(factory, token, WETH);\n        uint value = approveMax ? uint(-1) : liquidity;\n        IUniswapV2Pair(pair).permit(msg.sender, address(this), value, deadline, v, r, s);\n        amountETH = removeLiquidityETHSupportingFeeOnTransferTokens(\n            token, liquidity, amountTokenMin, amountETHMin, to, deadline\n        );\n    }\n\n    // **** SWAP ****\n    // requires the initial amount to have already been sent to the first pair\n    function _swap(uint[] memory amounts, address[] memory path, address _to) internal virtual {\n        for (uint i; i < path.length - 1; i++) {\n            (address input, address output) = (path[i], path[i + 1]);\n            (address token0,) = UniswapV2Library.sortTokens(input, output);\n            uint amountOut = amounts[i + 1];\n            (uint amount0Out, uint amount1Out) = input == token0 ? (uint(0), amountOut) : (amountOut, uint(0));\n            address to = i < path.length - 2 ? UniswapV2Library.pairFor(factory, output, path[i + 2]) : _to;\n            IUniswapV2Pair(UniswapV2Library.pairFor(factory, input, output)).swap(\n                amount0Out, amount1Out, to, new bytes(0)\n            );\n        }\n    }\n    function swapExactTokensForTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external virtual override ensure(deadline) returns (uint[] memory amounts) {\n        amounts = UniswapV2Library.getAmountsOut(factory, amountIn, path);\n        require(amounts[amounts.length - 1] >= amountOutMin, 'UniswapV2Router: INSUFFICIENT_OUTPUT_AMOUNT');\n        TransferHelper.safeTransferFrom(\n            path[0], msg.sender, UniswapV2Library.pairFor(factory, path[0], path[1]), amounts[0]\n        );\n        _swap(amounts, path, to);\n    }\n    function swapTokensForExactTokens(\n        uint amountOut,\n        uint amountInMax,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external virtual override ensure(deadline) returns (uint[] memory amounts) {\n        amounts = UniswapV2Library.getAmountsIn(factory, amountOut, path);\n        require(amounts[0] <= amountInMax, 'UniswapV2Router: EXCESSIVE_INPUT_AMOUNT');\n        TransferHelper.safeTransferFrom(\n            path[0], msg.sender, UniswapV2Library.pairFor(factory, path[0], path[1]), amounts[0]\n        );\n        _swap(amounts, path, to);\n    }\n    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)\n        external\n        virtual\n        override\n        payable\n        ensure(deadline)\n        returns (uint[] memory amounts)\n    {\n        require(path[0] == WETH, 'UniswapV2Router: INVALID_PATH');\n        amounts = UniswapV2Library.getAmountsOut(factory, msg.value, path);\n        require(amounts[amounts.length - 1] >= amountOutMin, 'UniswapV2Router: INSUFFICIENT_OUTPUT_AMOUNT');\n        IWETH(WETH).deposit{value: amounts[0]}();\n        assert(IWETH(WETH).transfer(UniswapV2Library.pairFor(factory, path[0], path[1]), amounts[0]));\n        _swap(amounts, path, to);\n    }\n    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)\n        external\n        virtual\n        override\n        ensure(deadline)\n        returns (uint[] memory amounts)\n    {\n        require(path[path.length - 1] == WETH, 'UniswapV2Router: INVALID_PATH');\n        amounts = UniswapV2Library.getAmountsIn(factory, amountOut, path);\n        require(amounts[0] <= amountInMax, 'UniswapV2Router: EXCESSIVE_INPUT_AMOUNT');\n        TransferHelper.safeTransferFrom(\n            path[0], msg.sender, UniswapV2Library.pairFor(factory, path[0], path[1]), amounts[0]\n        );\n        _swap(amounts, path, address(this));\n        IWETH(WETH).withdraw(amounts[amounts.length - 1]);\n        TransferHelper.safeTransferETH(to, amounts[amounts.length - 1]);\n    }\n    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)\n        external\n        virtual\n        override\n        ensure(deadline)\n        returns (uint[] memory amounts)\n    {\n        require(path[path.length - 1] == WETH, 'UniswapV2Router: INVALID_PATH');\n        amounts = UniswapV2Library.getAmountsOut(factory, amountIn, path);\n        require(amounts[amounts.length - 1] >= amountOutMin, 'UniswapV2Router: INSUFFICIENT_OUTPUT_AMOUNT');\n        TransferHelper.safeTransferFrom(\n            path[0], msg.sender, UniswapV2Library.pairFor(factory, path[0], path[1]), amounts[0]\n        );\n        _swap(amounts, path, address(this));\n        IWETH(WETH).withdraw(amounts[amounts.length - 1]);\n        TransferHelper.safeTransferETH(to, amounts[amounts.length - 1]);\n    }\n    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)\n        external\n        virtual\n        override\n        payable\n        ensure(deadline)\n        returns (uint[] memory amounts)\n    {\n        require(path[0] == WETH, 'UniswapV2Router: INVALID_PATH');\n        amounts = UniswapV2Library.getAmountsIn(factory, amountOut, path);\n        require(amounts[0] <= msg.value, 'UniswapV2Router: EXCESSIVE_INPUT_AMOUNT');\n        IWETH(WETH).deposit{value: amounts[0]}();\n        assert(IWETH(WETH).transfer(UniswapV2Library.pairFor(factory, path[0], path[1]), amounts[0]));\n        _swap(amounts, path, to);\n        // refund dust eth, if any\n        if (msg.value > amounts[0]) TransferHelper.safeTransferETH(msg.sender, msg.value - amounts[0]);\n    }\n\n    // **** SWAP (supporting fee-on-transfer tokens) ****\n    // requires the initial amount to have already been sent to the first pair\n    function _swapSupportingFeeOnTransferTokens(address[] memory path, address _to) internal virtual {\n        for (uint i; i < path.length - 1; i++) {\n            (address input, address output) = (path[i], path[i + 1]);\n            (address token0,) = UniswapV2Library.sortTokens(input, output);\n            IUniswapV2Pair pair = IUniswapV2Pair(UniswapV2Library.pairFor(factory, input, output));\n            uint amountInput;\n            uint amountOutput;\n            { // scope to avoid stack too deep errors\n            (uint reserve0, uint reserve1,) = pair.getReserves();\n            (uint reserveInput, uint reserveOutput) = input == token0 ? (reserve0, reserve1) : (reserve1, reserve0);\n            amountInput = IERC20(input).balanceOf(address(pair)).sub(reserveInput);\n            amountOutput = UniswapV2Library.getAmountOut(amountInput, reserveInput, reserveOutput);\n            }\n            (uint amount0Out, uint amount1Out) = input == token0 ? (uint(0), amountOutput) : (amountOutput, uint(0));\n            address to = i < path.length - 2 ? UniswapV2Library.pairFor(factory, output, path[i + 2]) : _to;\n            pair.swap(amount0Out, amount1Out, to, new bytes(0));\n        }\n    }\n    function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external virtual override ensure(deadline) {\n        TransferHelper.safeTransferFrom(\n            path[0], msg.sender, UniswapV2Library.pairFor(factory, path[0], path[1]), amountIn\n        );\n        uint balanceBefore = IERC20(path[path.length - 1]).balanceOf(to);\n        _swapSupportingFeeOnTransferTokens(path, to);\n        require(\n            IERC20(path[path.length - 1]).balanceOf(to).sub(balanceBefore) >= amountOutMin,\n            'UniswapV2Router: INSUFFICIENT_OUTPUT_AMOUNT'\n        );\n    }\n    function swapExactETHForTokensSupportingFeeOnTransferTokens(\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    )\n        external\n        virtual\n        override\n        payable\n        ensure(deadline)\n    {\n        require(path[0] == WETH, 'UniswapV2Router: INVALID_PATH');\n        uint amountIn = msg.value;\n        IWETH(WETH).deposit{value: amountIn}();\n        assert(IWETH(WETH).transfer(UniswapV2Library.pairFor(factory, path[0], path[1]), amountIn));\n        uint balanceBefore = IERC20(path[path.length - 1]).balanceOf(to);\n        _swapSupportingFeeOnTransferTokens(path, to);\n        require(\n            IERC20(path[path.length - 1]).balanceOf(to).sub(balanceBefore) >= amountOutMin,\n            'UniswapV2Router: INSUFFICIENT_OUTPUT_AMOUNT'\n        );\n    }\n    function swapExactTokensForETHSupportingFeeOnTransferTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    )\n        external\n        virtual\n        override\n        ensure(deadline)\n    {\n        require(path[path.length - 1] == WETH, 'UniswapV2Router: INVALID_PATH');\n        TransferHelper.safeTransferFrom(\n            path[0], msg.sender, UniswapV2Library.pairFor(factory, path[0], path[1]), amountIn\n        );\n        _swapSupportingFeeOnTransferTokens(path, address(this));\n        uint amountOut = IERC20(WETH).balanceOf(address(this));\n        require(amountOut >= amountOutMin, 'UniswapV2Router: INSUFFICIENT_OUTPUT_AMOUNT');\n        IWETH(WETH).withdraw(amountOut);\n        TransferHelper.safeTransferETH(to, amountOut);\n    }\n\n    // **** LIBRARY FUNCTIONS ****\n    function quote(uint amountA, uint reserveA, uint reserveB) public pure virtual override returns (uint amountB) {\n        return UniswapV2Library.quote(amountA, reserveA, reserveB);\n    }\n\n    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut)\n        public\n        pure\n        virtual\n        override\n        returns (uint amountOut)\n    {\n        return UniswapV2Library.getAmountOut(amountIn, reserveIn, reserveOut);\n    }\n\n    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut)\n        public\n        pure\n        virtual\n        override\n        returns (uint amountIn)\n    {\n        return UniswapV2Library.getAmountIn(amountOut, reserveIn, reserveOut);\n    }\n\n    function getAmountsOut(uint amountIn, address[] memory path)\n        public\n        view\n        virtual\n        override\n        returns (uint[] memory amounts)\n    {\n        return UniswapV2Library.getAmountsOut(factory, amountIn, path);\n    }\n\n    function getAmountsIn(uint amountOut, address[] memory path)\n        public\n        view\n        virtual\n        override\n        returns (uint[] memory amounts)\n    {\n        return UniswapV2Library.getAmountsIn(factory, amountOut, path);\n    }\n}\n"},"@uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IUniswapV2Factory {\n    event PairCreated(address indexed token0, address indexed token1, address pair, uint);\n\n    function feeTo() external view returns (address);\n    function feeToSetter() external view returns (address);\n\n    function getPair(address tokenA, address tokenB) external view returns (address pair);\n    function allPairs(uint) external view returns (address pair);\n    function allPairsLength() external view returns (uint);\n\n    function createPair(address tokenA, address tokenB) external returns (address pair);\n\n    function setFeeTo(address) external;\n    function setFeeToSetter(address) external;\n}\n"},"@uniswap/lib/contracts/libraries/TransferHelper.sol":{"content":"pragma solidity >=0.6.0;\n\n// helper methods for interacting with ERC20 tokens and sending ETH that do not consistently return true/false\nlibrary TransferHelper {\n    function safeApprove(address token, address to, uint value) internal {\n        // bytes4(keccak256(bytes('approve(address,uint256)')));\n        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));\n        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: APPROVE_FAILED');\n    }\n\n    function safeTransfer(address token, address to, uint value) internal {\n        // bytes4(keccak256(bytes('transfer(address,uint256)')));\n        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));\n        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FAILED');\n    }\n\n    function safeTransferFrom(address token, address from, address to, uint value) internal {\n        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));\n        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));\n        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FROM_FAILED');\n    }\n\n    function safeTransferETH(address to, uint value) internal {\n        (bool success,) = to.call{value:value}(new bytes(0));\n        require(success, 'TransferHelper: ETH_TRANSFER_FAILED');\n    }\n}\n"},"contracts/interfaces/IUniswapV2Router02.sol":{"content":"pragma solidity >=0.6.2;\n\nimport './IUniswapV2Router01.sol';\n\ninterface IUniswapV2Router02 is IUniswapV2Router01 {\n    function removeLiquidityETHSupportingFeeOnTransferTokens(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) external returns (uint amountETH);\n    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external returns (uint amountETH);\n\n    function swapExactTokensForTokensSupportingFeeOnTransferTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external;\n    function swapExactETHForTokensSupportingFeeOnTransferTokens(\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external payable;\n    function swapExactTokensForETHSupportingFeeOnTransferTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external;\n}\n"},"contracts/libraries/UniswapV2Library.sol":{"content":"pragma solidity >=0.5.0;\n\nimport '@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol';\n\nimport \"./SafeMath.sol\";\n\nlibrary UniswapV2Library {\n    using SafeMath for uint;\n\n    // returns sorted token addresses, used to handle return values from pairs sorted in this order\n    function sortTokens(address tokenA, address tokenB) internal pure returns (address token0, address token1) {\n        require(tokenA != tokenB, 'UniswapV2Library: IDENTICAL_ADDRESSES');\n        (token0, token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);\n        require(token0 != address(0), 'UniswapV2Library: ZERO_ADDRESS');\n    }\n\n    // calculates the CREATE2 address for a pair without making any external calls\n    function pairFor(address factory, address tokenA, address tokenB) internal pure returns (address pair) {\n        (address token0, address token1) = sortTokens(tokenA, tokenB);\n        pair = address(uint(keccak256(abi.encodePacked(\n                hex'ff',\n                factory,\n                keccak256(abi.encodePacked(token0, token1)),\n                hex'96e8ac4277198ff8b6f785478aa9a39f403cb768dd02cbee326c3e7da348845f' // init code hash\n            ))));\n    }\n\n    // fetches and sorts the reserves for a pair\n    function getReserves(address factory, address tokenA, address tokenB) internal view returns (uint reserveA, uint reserveB) {\n        (address token0,) = sortTokens(tokenA, tokenB);\n        (uint reserve0, uint reserve1,) = IUniswapV2Pair(pairFor(factory, tokenA, tokenB)).getReserves();\n        (reserveA, reserveB) = tokenA == token0 ? (reserve0, reserve1) : (reserve1, reserve0);\n    }\n\n    // given some amount of an asset and pair reserves, returns an equivalent amount of the other asset\n    function quote(uint amountA, uint reserveA, uint reserveB) internal pure returns (uint amountB) {\n        require(amountA > 0, 'UniswapV2Library: INSUFFICIENT_AMOUNT');\n        require(reserveA > 0 && reserveB > 0, 'UniswapV2Library: INSUFFICIENT_LIQUIDITY');\n        amountB = amountA.mul(reserveB) / reserveA;\n    }\n\n    // given an input amount of an asset and pair reserves, returns the maximum output amount of the other asset\n    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) internal pure returns (uint amountOut) {\n        require(amountIn > 0, 'UniswapV2Library: INSUFFICIENT_INPUT_AMOUNT');\n        require(reserveIn > 0 && reserveOut > 0, 'UniswapV2Library: INSUFFICIENT_LIQUIDITY');\n        uint amountInWithFee = amountIn.mul(997);\n        uint numerator = amountInWithFee.mul(reserveOut);\n        uint denominator = reserveIn.mul(1000).add(amountInWithFee);\n        amountOut = numerator / denominator;\n    }\n\n    // given an output amount of an asset and pair reserves, returns a required input amount of the other asset\n    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) internal pure returns (uint amountIn) {\n        require(amountOut > 0, 'UniswapV2Library: INSUFFICIENT_OUTPUT_AMOUNT');\n        require(reserveIn > 0 && reserveOut > 0, 'UniswapV2Library: INSUFFICIENT_LIQUIDITY');\n        uint numerator = reserveIn.mul(amountOut).mul(1000);\n        uint denominator = reserveOut.sub(amountOut).mul(997);\n        amountIn = (numerator / denominator).add(1);\n    }\n\n    // performs chained getAmountOut calculations on any number of pairs\n    function getAmountsOut(address factory, uint amountIn, address[] memory path) internal view returns (uint[] memory amounts) {\n        require(path.length >= 2, 'UniswapV2Library: INVALID_PATH');\n        amounts = new uint[](path.length);\n        amounts[0] = amountIn;\n        for (uint i; i < path.length - 1; i++) {\n            (uint reserveIn, uint reserveOut) = getReserves(factory, path[i], path[i + 1]);\n            amounts[i + 1] = getAmountOut(amounts[i], reserveIn, reserveOut);\n        }\n    }\n\n    // performs chained getAmountIn calculations on any number of pairs\n    function getAmountsIn(address factory, uint amountOut, address[] memory path) internal view returns (uint[] memory amounts) {\n        require(path.length >= 2, 'UniswapV2Library: INVALID_PATH');\n        amounts = new uint[](path.length);\n        amounts[amounts.length - 1] = amountOut;\n        for (uint i = path.length - 1; i > 0; i--) {\n            (uint reserveIn, uint reserveOut) = getReserves(factory, path[i - 1], path[i]);\n            amounts[i - 1] = getAmountIn(amounts[i], reserveIn, reserveOut);\n        }\n    }\n}\n"},"contracts/libraries/SafeMath.sol":{"content":"pragma solidity =0.6.6;\n\n// a library for performing overflow-safe math, courtesy of DappHub (https://github.com/dapphub/ds-math)\n\nlibrary SafeMath {\n    function add(uint x, uint y) internal pure returns (uint z) {\n        require((z = x + y) >= x, 'ds-math-add-overflow');\n    }\n\n    function sub(uint x, uint y) internal pure returns (uint z) {\n        require((z = x - y) <= x, 'ds-math-sub-underflow');\n    }\n\n    function mul(uint x, uint y) internal pure returns (uint z) {\n        require(y == 0 || (z = x * y) / y == x, 'ds-math-mul-overflow');\n    }\n}\n"},"contracts/interfaces/IERC20.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IERC20 {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external view returns (string memory);\n    function symbol() external view returns (string memory);\n    function decimals() external view returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n}\n"},"contracts/interfaces/IWETH.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IWETH {\n    function deposit() external payable;\n    function transfer(address to, uint value) external returns (bool);\n    function withdraw(uint) external;\n}\n"},"contracts/interfaces/IUniswapV2Router01.sol":{"content":"pragma solidity >=0.6.2;\n\ninterface IUniswapV2Router01 {\n    function factory() external pure returns (address);\n    function WETH() external pure returns (address);\n\n    function addLiquidity(\n        address tokenA,\n        address tokenB,\n        uint amountADesired,\n        uint amountBDesired,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline\n    ) external returns (uint amountA, uint amountB, uint liquidity);\n    function addLiquidityETH(\n        address token,\n        uint amountTokenDesired,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);\n    function removeLiquidity(\n        address tokenA,\n        address tokenB,\n        uint liquidity,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline\n    ) external returns (uint amountA, uint amountB);\n    function removeLiquidityETH(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline\n    ) external returns (uint amountToken, uint amountETH);\n    function removeLiquidityWithPermit(\n        address tokenA,\n        address tokenB,\n        uint liquidity,\n        uint amountAMin,\n        uint amountBMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external returns (uint amountA, uint amountB);\n    function removeLiquidityETHWithPermit(\n        address token,\n        uint liquidity,\n        uint amountTokenMin,\n        uint amountETHMin,\n        address to,\n        uint deadline,\n        bool approveMax, uint8 v, bytes32 r, bytes32 s\n    ) external returns (uint amountToken, uint amountETH);\n    function swapExactTokensForTokens(\n        uint amountIn,\n        uint amountOutMin,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external returns (uint[] memory amounts);\n    function swapTokensForExactTokens(\n        uint amountOut,\n        uint amountInMax,\n        address[] calldata path,\n        address to,\n        uint deadline\n    ) external returns (uint[] memory amounts);\n    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)\n        external\n        payable\n        returns (uint[] memory amounts);\n    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)\n        external\n        returns (uint[] memory amounts);\n    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)\n        external\n        returns (uint[] memory amounts);\n    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)\n        external\n        payable\n        returns (uint[] memory amounts);\n\n    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);\n    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);\n    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);\n    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);\n    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);\n}\n"},"@uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol":{"content":"pragma solidity >=0.5.0;\n\ninterface IUniswapV2Pair {\n    event Approval(address indexed owner, address indexed spender, uint value);\n    event Transfer(address indexed from, address indexed to, uint value);\n\n    function name() external pure returns (string memory);\n    function symbol() external pure returns (string memory);\n    function decimals() external pure returns (uint8);\n    function totalSupply() external view returns (uint);\n    function balanceOf(address owner) external view returns (uint);\n    function allowance(address owner, address spender) external view returns (uint);\n\n    function approve(address spender, uint value) external returns (bool);\n    function transfer(address to, uint value) external returns (bool);\n    function transferFrom(address from, address to, uint value) external returns (bool);\n\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n    function PERMIT_TYPEHASH() external pure returns (bytes32);\n    function nonces(address owner) external view returns (uint);\n\n    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;\n\n    event Mint(address indexed sender, uint amount0, uint amount1);\n    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);\n    event Swap(\n        address indexed sender,\n        uint amount0In,\n        uint amount1In,\n        uint amount0Out,\n        uint amount1Out,\n        address indexed to\n    );\n    event Sync(uint112 reserve0, uint112 reserve1);\n\n    function MINIMUM_LIQUIDITY() external pure returns (uint);\n    function factory() external view returns (address);\n    function token0() external view returns (address);\n    function token1() external view returns (address);\n    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);\n    function price0CumulativeLast() external view returns (uint);\n    function price1CumulativeLast() external view returns (uint);\n    function kLast() external view returns (uint);\n\n    function mint(address to) external returns (uint liquidity);\n    function burn(address to) external returns (uint amount0, uint amount1);\n    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;\n    function skim(address to) external;\n    function sync() external;\n\n    function initialize(address, address) external;\n}\n"}},"settings":{"optimizer":{"enabled":true,"runs":999999},"evmVersion":"istanbul","outputSelection":{"*":{"*":["abi","evm.bytecode.object","evm.deployedBytecode.object","evm.deployedBytecode.immutableReferences"]}}}},"wrappedCompiler":"0.8.37","wrappedInput":{"language":"Solidity","sources":{"WMNC.sol":{"content":"// SPDX-License-Identifier: MIT\npragma solidity 0.8.37;\nimport {ERC20} from \"@openzeppelin/contracts/token/ERC20/ERC20.sol\";\n\n/// @notice One WMNC is redeemable for one native MNC held by this contract.\n/// No privileged mint, administrator, pause or upgrade functions.\ncontract WMNC is ERC20 {\n    event Deposit(address indexed dst, uint256 wad);\n    event Withdrawal(address indexed src, uint256 wad);\n    constructor() ERC20(\"Wrapped MobileNode Coin\", \"WMNC\") {}\n    receive() external payable { deposit(); }\n    function deposit() public payable {\n        _mint(msg.sender, msg.value);\n        emit Deposit(msg.sender, msg.value);\n    }\n    function withdraw(uint256 amount) external {\n        _burn(msg.sender, amount);\n        (bool ok,) = msg.sender.call{value: amount}(\"\");\n        require(ok, \"MNC transfer failed\");\n        emit Withdrawal(msg.sender, amount);\n    }\n}\n"},"@openzeppelin/contracts/token/ERC20/ERC20.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.5.0) (token/ERC20/ERC20.sol)\n\npragma solidity ^0.8.20;\n\nimport {IERC20} from \"./IERC20.sol\";\nimport {IERC20Metadata} from \"./extensions/IERC20Metadata.sol\";\nimport {Context} from \"../../utils/Context.sol\";\nimport {IERC20Errors} from \"../../interfaces/draft-IERC6093.sol\";\n\n/**\n * @dev Implementation of the {IERC20} interface.\n *\n * This implementation is agnostic to the way tokens are created. This means\n * that a supply mechanism has to be added in a derived contract using {_mint}.\n *\n * TIP: For a detailed writeup see our guide\n * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How\n * to implement supply mechanisms].\n *\n * The default value of {decimals} is 18. To change this, you should override\n * this function so it returns a different value.\n *\n * We have followed general OpenZeppelin Contracts guidelines: functions revert\n * instead returning `false` on failure. This behavior is nonetheless\n * conventional and does not conflict with the expectations of ERC-20\n * applications.\n */\nabstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {\n    mapping(address account => uint256) private _balances;\n\n    mapping(address account => mapping(address spender => uint256)) private _allowances;\n\n    uint256 private _totalSupply;\n\n    string private _name;\n    string private _symbol;\n\n    /**\n     * @dev Sets the values for {name} and {symbol}.\n     *\n     * Both values are immutable: they can only be set once during construction.\n     */\n    constructor(string memory name_, string memory symbol_) {\n        _name = name_;\n        _symbol = symbol_;\n    }\n\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() public view virtual returns (string memory) {\n        return _name;\n    }\n\n    /**\n     * @dev Returns the symbol of the token, usually a shorter version of the\n     * name.\n     */\n    function symbol() public view virtual returns (string memory) {\n        return _symbol;\n    }\n\n    /**\n     * @dev Returns the number of decimals used to get its user representation.\n     * For example, if `decimals` equals `2`, a balance of `505` tokens should\n     * be displayed to a user as `5.05` (`505 / 10 ** 2`).\n     *\n     * Tokens usually opt for a value of 18, imitating the relationship between\n     * Ether and Wei. This is the default value returned by this function, unless\n     * it's overridden.\n     *\n     * NOTE: This information is only used for _display_ purposes: it in\n     * no way affects any of the arithmetic of the contract, including\n     * {IERC20-balanceOf} and {IERC20-transfer}.\n     */\n    function decimals() public view virtual returns (uint8) {\n        return 18;\n    }\n\n    /// @inheritdoc IERC20\n    function totalSupply() public view virtual returns (uint256) {\n        return _totalSupply;\n    }\n\n    /// @inheritdoc IERC20\n    function balanceOf(address account) public view virtual returns (uint256) {\n        return _balances[account];\n    }\n\n    /**\n     * @dev See {IERC20-transfer}.\n     *\n     * Requirements:\n     *\n     * - `to` cannot be the zero address.\n     * - the caller must have a balance of at least `value`.\n     */\n    function transfer(address to, uint256 value) public virtual returns (bool) {\n        address owner = _msgSender();\n        _transfer(owner, to, value);\n        return true;\n    }\n\n    /// @inheritdoc IERC20\n    function allowance(address owner, address spender) public view virtual returns (uint256) {\n        return _allowances[owner][spender];\n    }\n\n    /**\n     * @dev See {IERC20-approve}.\n     *\n     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on\n     * `transferFrom`. This is semantically equivalent to an infinite approval.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     */\n    function approve(address spender, uint256 value) public virtual returns (bool) {\n        address owner = _msgSender();\n        _approve(owner, spender, value);\n        return true;\n    }\n\n    /**\n     * @dev See {IERC20-transferFrom}.\n     *\n     * Skips emitting an {Approval} event indicating an allowance update. This is not\n     * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].\n     *\n     * NOTE: Does not update the allowance if the current allowance\n     * is the maximum `uint256`.\n     *\n     * Requirements:\n     *\n     * - `from` and `to` cannot be the zero address.\n     * - `from` must have a balance of at least `value`.\n     * - the caller must have allowance for ``from``'s tokens of at least\n     * `value`.\n     */\n    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {\n        address spender = _msgSender();\n        _spendAllowance(from, spender, value);\n        _transfer(from, to, value);\n        return true;\n    }\n\n    /**\n     * @dev Moves a `value` amount of tokens from `from` to `to`.\n     *\n     * This internal function is equivalent to {transfer}, and can be used to\n     * e.g. implement automatic token fees, slashing mechanisms, etc.\n     *\n     * Emits a {Transfer} event.\n     *\n     * NOTE: This function is not virtual, {_update} should be overridden instead.\n     */\n    function _transfer(address from, address to, uint256 value) internal {\n        if (from == address(0)) {\n            revert ERC20InvalidSender(address(0));\n        }\n        if (to == address(0)) {\n            revert ERC20InvalidReceiver(address(0));\n        }\n        _update(from, to, value);\n    }\n\n    /**\n     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`\n     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding\n     * this function.\n     *\n     * Emits a {Transfer} event.\n     */\n    function _update(address from, address to, uint256 value) internal virtual {\n        if (from == address(0)) {\n            // Overflow check required: The rest of the code assumes that totalSupply never overflows\n            _totalSupply += value;\n        } else {\n            uint256 fromBalance = _balances[from];\n            if (fromBalance < value) {\n                revert ERC20InsufficientBalance(from, fromBalance, value);\n            }\n            unchecked {\n                // Overflow not possible: value <= fromBalance <= totalSupply.\n                _balances[from] = fromBalance - value;\n            }\n        }\n\n        if (to == address(0)) {\n            unchecked {\n                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.\n                _totalSupply -= value;\n            }\n        } else {\n            unchecked {\n                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.\n                _balances[to] += value;\n            }\n        }\n\n        emit Transfer(from, to, value);\n    }\n\n    /**\n     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).\n     * Relies on the `_update` mechanism\n     *\n     * Emits a {Transfer} event with `from` set to the zero address.\n     *\n     * NOTE: This function is not virtual, {_update} should be overridden instead.\n     */\n    function _mint(address account, uint256 value) internal {\n        if (account == address(0)) {\n            revert ERC20InvalidReceiver(address(0));\n        }\n        _update(address(0), account, value);\n    }\n\n    /**\n     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.\n     * Relies on the `_update` mechanism.\n     *\n     * Emits a {Transfer} event with `to` set to the zero address.\n     *\n     * NOTE: This function is not virtual, {_update} should be overridden instead\n     */\n    function _burn(address account, uint256 value) internal {\n        if (account == address(0)) {\n            revert ERC20InvalidSender(address(0));\n        }\n        _update(account, address(0), value);\n    }\n\n    /**\n     * @dev Sets `value` as the allowance of `spender` over the `owner`'s tokens.\n     *\n     * This internal function is equivalent to `approve`, and can be used to\n     * e.g. set automatic allowances for certain subsystems, etc.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `owner` cannot be the zero address.\n     * - `spender` cannot be the zero address.\n     *\n     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.\n     */\n    function _approve(address owner, address spender, uint256 value) internal {\n        _approve(owner, spender, value, true);\n    }\n\n    /**\n     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.\n     *\n     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by\n     * `_spendAllowance` during the `transferFrom` operation sets the flag to false. This saves gas by not emitting any\n     * `Approval` event during `transferFrom` operations.\n     *\n     * Anyone who wishes to continue emitting `Approval` events on the `transferFrom` operation can force the flag to\n     * true using the following override:\n     *\n     * ```solidity\n     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {\n     *     super._approve(owner, spender, value, true);\n     * }\n     * ```\n     *\n     * Requirements are the same as {_approve}.\n     */\n    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {\n        if (owner == address(0)) {\n            revert ERC20InvalidApprover(address(0));\n        }\n        if (spender == address(0)) {\n            revert ERC20InvalidSpender(address(0));\n        }\n        _allowances[owner][spender] = value;\n        if (emitEvent) {\n            emit Approval(owner, spender, value);\n        }\n    }\n\n    /**\n     * @dev Updates `owner`'s allowance for `spender` based on spent `value`.\n     *\n     * Does not update the allowance value in case of infinite allowance.\n     * Revert if not enough allowance is available.\n     *\n     * Does not emit an {Approval} event.\n     */\n    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {\n        uint256 currentAllowance = allowance(owner, spender);\n        if (currentAllowance < type(uint256).max) {\n            if (currentAllowance < value) {\n                revert ERC20InsufficientAllowance(spender, currentAllowance, value);\n            }\n            unchecked {\n                _approve(owner, spender, currentAllowance - value, false);\n            }\n        }\n    }\n}\n"},"@openzeppelin/contracts/token/ERC20/IERC20.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/IERC20.sol)\n\npragma solidity >=0.4.16;\n\n/**\n * @dev Interface of the ERC-20 standard as defined in the ERC.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the value of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the value of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves a `value` amount of tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 value) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the\n     * caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 value) external returns (bool);\n\n    /**\n     * @dev Moves a `value` amount of tokens from `from` to `to` using the\n     * allowance mechanism. `value` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(address from, address to, uint256 value) external returns (bool);\n}\n"},"@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.4.0) (token/ERC20/extensions/IERC20Metadata.sol)\n\npragma solidity >=0.6.2;\n\nimport {IERC20} from \"../IERC20.sol\";\n\n/**\n * @dev Interface for the optional metadata functions from the ERC-20 standard.\n */\ninterface IERC20Metadata is IERC20 {\n    /**\n     * @dev Returns the name of the token.\n     */\n    function name() external view returns (string memory);\n\n    /**\n     * @dev Returns the symbol of the token.\n     */\n    function symbol() external view returns (string memory);\n\n    /**\n     * @dev Returns the decimals places of the token.\n     */\n    function decimals() external view returns (uint8);\n}\n"},"@openzeppelin/contracts/utils/Context.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)\n\npragma solidity ^0.8.20;\n\n/**\n * @dev Provides information about the current execution context, including the\n * sender of the transaction and its data. While these are generally available\n * via msg.sender and msg.data, they should not be accessed in such a direct\n * manner, since when dealing with meta-transactions the account sending and\n * paying for execution may not be the actual sender (as far as an application\n * is concerned).\n *\n * This contract is only required for intermediate, library-like contracts.\n */\nabstract contract Context {\n    function _msgSender() internal view virtual returns (address) {\n        return msg.sender;\n    }\n\n    function _msgData() internal view virtual returns (bytes calldata) {\n        return msg.data;\n    }\n\n    function _contextSuffixLength() internal view virtual returns (uint256) {\n        return 0;\n    }\n}\n"},"@openzeppelin/contracts/interfaces/draft-IERC6093.sol":{"content":"// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v5.5.0) (interfaces/draft-IERC6093.sol)\n\npragma solidity >=0.8.4;\n\n/**\n * @dev Standard ERC-20 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens.\n */\ninterface IERC20Errors {\n    /**\n     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     * @param balance Current balance for the interacting account.\n     * @param needed Minimum amount required to perform a transfer.\n     */\n    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);\n\n    /**\n     * @dev Indicates a failure with the token `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     */\n    error ERC20InvalidSender(address sender);\n\n    /**\n     * @dev Indicates a failure with the token `receiver`. Used in transfers.\n     * @param receiver Address to which tokens are being transferred.\n     */\n    error ERC20InvalidReceiver(address receiver);\n\n    /**\n     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.\n     * @param spender Address that may be allowed to operate on tokens without being their owner.\n     * @param allowance Amount of tokens a `spender` is allowed to operate with.\n     * @param needed Minimum amount required to perform a transfer.\n     */\n    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);\n\n    /**\n     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n     * @param approver Address initiating an approval operation.\n     */\n    error ERC20InvalidApprover(address approver);\n\n    /**\n     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.\n     * @param spender Address that may be allowed to operate on tokens without being their owner.\n     */\n    error ERC20InvalidSpender(address spender);\n}\n\n/**\n * @dev Standard ERC-721 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.\n */\ninterface IERC721Errors {\n    /**\n     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-721.\n     * Used in balance queries.\n     * @param owner Address of the current owner of a token.\n     */\n    error ERC721InvalidOwner(address owner);\n\n    /**\n     * @dev Indicates a `tokenId` whose `owner` is the zero address.\n     * @param tokenId Identifier number of a token.\n     */\n    error ERC721NonexistentToken(uint256 tokenId);\n\n    /**\n     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     * @param tokenId Identifier number of a token.\n     * @param owner Address of the current owner of a token.\n     */\n    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);\n\n    /**\n     * @dev Indicates a failure with the token `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     */\n    error ERC721InvalidSender(address sender);\n\n    /**\n     * @dev Indicates a failure with the token `receiver`. Used in transfers.\n     * @param receiver Address to which tokens are being transferred.\n     */\n    error ERC721InvalidReceiver(address receiver);\n\n    /**\n     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.\n     * @param operator Address that may be allowed to operate on tokens without being their owner.\n     * @param tokenId Identifier number of a token.\n     */\n    error ERC721InsufficientApproval(address operator, uint256 tokenId);\n\n    /**\n     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n     * @param approver Address initiating an approval operation.\n     */\n    error ERC721InvalidApprover(address approver);\n\n    /**\n     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.\n     * @param operator Address that may be allowed to operate on tokens without being their owner.\n     */\n    error ERC721InvalidOperator(address operator);\n}\n\n/**\n * @dev Standard ERC-1155 Errors\n * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens.\n */\ninterface IERC1155Errors {\n    /**\n     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     * @param balance Current balance for the interacting account.\n     * @param needed Minimum amount required to perform a transfer.\n     * @param tokenId Identifier number of a token.\n     */\n    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);\n\n    /**\n     * @dev Indicates a failure with the token `sender`. Used in transfers.\n     * @param sender Address whose tokens are being transferred.\n     */\n    error ERC1155InvalidSender(address sender);\n\n    /**\n     * @dev Indicates a failure with the token `receiver`. Used in transfers.\n     * @param receiver Address to which tokens are being transferred.\n     */\n    error ERC1155InvalidReceiver(address receiver);\n\n    /**\n     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.\n     * @param operator Address that may be allowed to operate on tokens without being their owner.\n     * @param owner Address of the current owner of a token.\n     */\n    error ERC1155MissingApprovalForAll(address operator, address owner);\n\n    /**\n     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.\n     * @param approver Address initiating an approval operation.\n     */\n    error ERC1155InvalidApprover(address approver);\n\n    /**\n     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.\n     * @param operator Address that may be allowed to operate on tokens without being their owner.\n     */\n    error ERC1155InvalidOperator(address operator);\n\n    /**\n     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.\n     * Used in batch transfers.\n     * @param idsLength Length of the array of token identifiers\n     * @param valuesLength Length of the array of token amounts\n     */\n    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);\n}\n"}},"settings":{"evmVersion":"cancun","optimizer":{"enabled":true,"runs":200},"outputSelection":{"*":{"*":["abi","evm.bytecode.object","evm.deployedBytecode.object"]}}}},"licenses":{"uniswap":"GPL-3.0","wrapped":"MIT","openzeppelin":"MIT"}}