pragma solidity ^0.8.0;

// SPDX-License-Identifier: MIT

contract ERC20 {
    string public constant name = "BaseCrab";
    string public constant symbol = "BCRAB";
    uint8 public constant decimals = 8;
    uint256 public constant totalSupply = 980000000 * (10**uint256(decimals));
    address public constant contractOwner = address(0x00000000000000000000000000000000000000dEaD);

    mapping(address => uint256) public balanceOf;
    mapping(address => mapping(address => uint256)) public allowance;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);

    constructor() {
        balanceOf[msg.sender] = totalSupply;
        emit Transfer(address(0), msg.sender, totalSupply);
    }

    function _transfer(
        address _from,
        address _to,
        uint256 _value
    ) internal {
        require(_to != address(0), "ERC20: transfer to the zero address");
        require(balanceOf[_from] >= _value, "ERC20: transfer amount exceeds balance");
        balanceOf[_from] -= _value;
        balanceOf[_to] += _value;
        emit Transfer(_from, _to, _value);
    }

    function transfer(address _to, uint256 _value) public returns (bool success) {
        _transfer(msg.sender, _to, _value);
        return true;
    }

    function transferFrom(
        address _from,
        address _to,
        uint256 _value
    ) public returns (bool success) {
        require(_value <= allowance[_from][msg.sender], "ERC20: transfer amount exceeds allowance");
        allowance[_from][msg.sender] -= _value;
        _transfer(_from, _to, _value);
        return true;
    }

    function approve(address _spender, uint256 _value) public returns (bool success) {
        allowance[msg.sender][_spender] = _value;
        emit Approval(msg.sender, _spender, _value);
        return true;
    }
}

{
  "compilationTarget": {
    "ERC20.sol": "ERC20"
  },
  "evmVersion": "cancun",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}