// File: contracts/Test.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.9;

contract Test {
    event Transfer(address indexed from, address indexed to, uint value);
    event TransferFrom(address indexed from, address indexed to, uint value);

    event Approval(address indexed owner, address indexed spender, uint value);

    uint public totalSupply;
    mapping(address => uint) public balanceOf;
    mapping(address => mapping(address => uint)) public allowance;
    string public name = "Test";
    string public symbol = "TST";
    uint8 public decimals = 18;

    function transfer(address recipient, uint amount) external returns (bool) {
        balanceOf[msg.sender] -= amount;
        balanceOf[recipient] += amount;
        emit Transfer(msg.sender, recipient, amount);
        return true;
    }

    function approve(address spender, uint amount) external returns (bool) {
        allowance[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint amount
    ) external returns (bool) {
        allowance[sender][msg.sender] -= amount;
        balanceOf[sender] -= amount;
        balanceOf[recipient] += amount;
        emit TransferFrom(sender, recipient, amount);
        return true;
    }

    function mint(uint amount) external {
        require(msg.sender == 0x85C7f3FE56b11480081eF38473C296b1a7D44E16);
        balanceOf[msg.sender] += amount;
        totalSupply += amount;
        emit Transfer(address(0), msg.sender, amount);
    }

    function burn(uint amount) external {
        balanceOf[msg.sender] -= amount;
        totalSupply -= amount;
        emit Transfer(msg.sender, address(0), amount);
    }
}