creation_sourcecode: // SPDX-License-Identifier: UNLICENSED
  
  pragma solidity 0.8.18;
  
  contract MUMU {
      string public name = "MUMU";
      string public symbol = "MUMU";
      uint256 public totalSupply = 8888888888888 * 10**18;
      uint8 public decimals = 18;
      
      event Transfer(address indexed _from, address indexed _to, uint256 _value);
      event Approval(address indexed _owner, address indexed _spender, uint256 _value);
  
      mapping(address => uint256) public balanceOf;
      mapping(address => mapping(address => uint256)) public allowance;
  
      constructor() {
          balanceOf[msg.sender] = totalSupply;
      }
  
      function transfer(address _to, uint256 _value) public returns (bool success) {
          require(balanceOf[msg.sender] >= _value);
          balanceOf[msg.sender] -= _value;
          balanceOf[_to] += _value;
          emit Transfer(msg.sender, _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;
      }
  
      function transferFrom(address _from, address _to, uint256 _value) public returns (bool success) {
          require(_value <= balanceOf[_from]);
          require(_value <= allowance[_from][msg.sender]);
          balanceOf[_from] -= _value;
          balanceOf[_to] += _value;
          allowance[_from][msg.sender] -= _value;
          emit Transfer(_from, _to, _value);
          return true;
      }
  }