{"ERC20.sol":{"content":"pragma solidity ^0.4.25;\r\nimport \"./ERC20SafeMath.sol\";\r\n\r\n\r\ncontract ERC20  {\r\n    \r\n    using SafeMath for uint256;\r\n\r\n    string  public name;\r\n    string  public symbol;\r\n    uint public decimals;\r\n\r\n    mapping (address =\u003e uint256) private _balances;\r\n\r\n    mapping (address =\u003e mapping (address =\u003e uint256)) private _allowances;\r\n\r\n    uint256 private _totalSupply;\r\n    \r\n    event Transfer(address indexed from, address indexed to, uint256 value);\r\n\r\n    event Approval(address indexed owner, address indexed spender, uint256 value);\r\n    \r\n      constructor (uint256 _initialSupply, string memory _name, string memory _symbol, uint _decimals) public {\r\n        _balances[msg.sender] = 10 ** uint(_decimals) * _initialSupply;\r\n        _totalSupply = 10 ** uint(_decimals) * _initialSupply;\r\n        name = _name;\r\n        symbol =_symbol;\r\n        decimals = _decimals;\r\n    }\r\n\r\n    function totalSupply() public view returns (uint256) {\r\n        return _totalSupply;\r\n    }\r\n    \r\n \r\n    function balanceOf(address account) public view returns (uint256) {\r\n        return _balances[account];\r\n    }\r\n\r\n    function transfer(address recipient, uint256 amount) public returns (bool) {\r\n        _transfer(msg.sender, recipient, amount);\r\n        return true;\r\n    }\r\n\r\n    function allowance(address owner, address spender) public view returns (uint256) {\r\n        return _allowances[owner][spender];\r\n    }\r\n\r\n    function approve(address spender, uint256 value) public returns (bool) {\r\n        _approve(msg.sender, spender, value);\r\n        return true;\r\n    }\r\n\r\n\r\n    function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) {\r\n        _transfer(sender, recipient, amount);\r\n        _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, \"ERC20: transfer amount exceeds allowance\"));\r\n        return true;\r\n    }\r\n\r\n    function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {\r\n        _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue));\r\n        return true;\r\n    }\r\n\r\n    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {\r\n        _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue, \"ERC20: decreased allowance below zero\"));\r\n        return true;\r\n    }\r\n\r\n    function _transfer(address sender, address recipient, uint256 amount) internal {\r\n        require(sender != address(0), \"ERC20: transfer from the zero address\");\r\n        require(recipient != address(0), \"ERC20: transfer to the zero address\");\r\n\r\n        _balances[sender] = _balances[sender].sub(amount, \"ERC20: transfer amount exceeds balance\");\r\n        _balances[recipient] = _balances[recipient].add(amount);\r\n        emit Transfer(sender, recipient, amount);\r\n    }\r\n\r\n    function _approve(address owner, address spender, uint256 value) internal {\r\n        require(owner != address(0), \"ERC20: approve from the zero address\");\r\n        require(spender != address(0), \"ERC20: approve to the zero address\");\r\n\r\n        _allowances[owner][spender] = value;\r\n        emit Approval(owner, spender, value);\r\n    }\r\n\r\n}"},"ERC20SafeMath.sol":{"content":"pragma solidity ^0.4.25;\r\nlibrary SafeMath {\r\n \r\n    function add(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        uint256 c = a + b;\r\n        require(c \u003e= a, \"SafeMath: addition overflow\");\r\n\r\n        return c;\r\n    }\r\n\r\n\r\n    function sub(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        return sub(a, b, \"SafeMath: subtraction overflow\");\r\n    }\r\n\r\n    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\r\n        require(b \u003c= a, errorMessage);\r\n        uint256 c = a - b;\r\n\r\n        return c;\r\n    }\r\n\r\n    function mul(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        if (a == 0) {\r\n            return 0;\r\n        }\r\n\r\n        uint256 c = a * b;\r\n        require(c / a == b, \"SafeMath: multiplication overflow\");\r\n\r\n        return c;\r\n    }\r\n\r\n  \r\n    function div(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        return div(a, b, \"SafeMath: division by zero\");\r\n    }\r\n\r\n  \r\n    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\r\n        // Solidity only automatically asserts when dividing by 0\r\n        require(b \u003e 0, errorMessage);\r\n        uint256 c = a / b;\r\n        // assert(a == b * c + a % b); // There is no case in which this doesn\u0027t hold\r\n\r\n        return c;\r\n    }\r\n\r\n  \r\n    function mod(uint256 a, uint256 b) internal pure returns (uint256) {\r\n        return mod(a, b, \"SafeMath: modulo by zero\");\r\n    }\r\n\r\n   \r\n    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {\r\n        require(b != 0, errorMessage);\r\n        return a % b;\r\n    }\r\n}"}}