creation_sourcecode: // SPDX-License-Identifier: MIT
  
  /**
   * testlek
   */
  
  pragma solidity >=0.8.19;
  
  interface IERC20 {
      function totalSupply() external view returns (uint256);
  
      function balanceOf(address account) external view returns (uint256);
  
      function allowance(address owner, address spender) external view returns (uint256);
  
      function transfer(address recipient, uint256 amount) external returns (bool);
  
      function approve(address spender, uint256 amount) external returns (bool);
  
      function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
  
      event Transfer(address indexed from, address indexed to, uint256 value);
      event Approval(address indexed owner, address indexed spender, uint256 value);
  }
  
  // @dev Wrappers over Solidity's arithmetic operations with added overflow * checks.
  library SafeMath {
      // Counterpart to Solidity's `+` operator.
      function add(uint256 a, uint256 b) internal pure returns (uint256) {
          uint256 c = a + b;
          require(c >= a, "SafeMath: addition overflow");
          return c;
      }
  
      // Counterpart to Solidity's `-` operator.
      function sub(uint256 a, uint256 b) internal pure returns (uint256) {
          return sub(a, b, "SafeMath: subtraction overflow");
      }
  
      // Counterpart to Solidity's `-` operator.
      function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
          require(b <= a, errorMessage);
          uint256 c = a - b;
          return c;
      }
  
      // Counterpart to Solidity's `*` operator.
      function mul(uint256 a, uint256 b) internal pure returns (uint256) {
          // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
          // benefit is lost if 'b' is also tested.
          if (a == 0) {
              return 0;
          }
          uint256 c = a * b;
          require(c / a == b, "SafeMath: multiplication overflow");
          return c;
      }
  
      // Counterpart to Solidity's `/` operator.
      function div(uint256 a, uint256 b) internal pure returns (uint256) {
          return div(a, b, "SafeMath: division by zero");
      }
  
      // Counterpart to Solidity's `/` operator.
      function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
          // Solidity only automatically asserts when dividing by 0
          require(b > 0, errorMessage);
          uint256 c = a / b;
          // assert(a == b * c + a % b); // There is no case in which this doesn't hold
          return c;
      }
  
      // Counterpart to Solidity's `%` operator.
      function mod(uint256 a, uint256 b) internal pure returns (uint256) {
          return mod(a, b, "SafeMath: modulo by zero");
      }
  
      // Counterpart to Solidity's `%` operator.
      function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
          require(b != 0, errorMessage);
          return a % b;
      }
  }
  
  contract Context {
      // Empty internal constructor, to prevent people from mistakenly deploying
      // an instance of this contract, which should be used via inheritance.
      constructor () { }
  
      function _msgSender() internal view returns (address payable) {
          return payable(msg.sender);
      }
  
      function _msgData() internal view returns (bytes memory) {
          this; // silence state mutability warning without generating bytecode 
          return msg.data;
      }
  }
  
  contract Ownable is Context {
      address private _owner;
  
      event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
  
      constructor () {
          address msgSender = _msgSender();
          _owner = msgSender;
          emit OwnershipTransferred(address(0), msgSender);
      }
  
      function owner() public view returns (address) {
          return _owner;
      }
  
      modifier onlyOwner() {
          require(_owner == _msgSender(), "onlyOwner");
          _;
      }
  
      function renounceOwnership() public onlyOwner {
          emit OwnershipTransferred(_owner, address(0));
          _owner = address(0);
      }
  
      function transferOwnership(address newOwner) public onlyOwner {
          _transferOwnership(newOwner);
      }
  
      function _transferOwnership(address newOwner) internal {
          require(newOwner != address(0), "Ownable: new owner is the zero address");
          emit OwnershipTransferred(_owner, newOwner);
          _owner = newOwner;
      }
  }
  
  contract SimpleToken is Context, Ownable, IERC20 {
      using SafeMath for uint256;
  
      mapping(address => uint256) private _balances;
      mapping(address => mapping(address => uint256)) private _allowances;
  
      uint256 private _totalSupply;
      uint8 public _decimals;
      string public _symbol;
      string public _name;
  
      constructor() {
          _name = "testlek";
          _symbol = "testlek";
          _decimals = 18;
          _totalSupply = 1000000000 * 1000000000000000000;
          _balances[msg.sender] = _totalSupply;
  
          emit Transfer(address(0), msg.sender, _totalSupply);
      }
  
      function getOwner() external view returns (address) {
          return owner();
      }
  
      function decimals() external view returns (uint8) {
          return _decimals;
      }
  
      function symbol() external view returns (string memory) {
          return _symbol;
      }
  
      function name() external view returns (string memory) {
          return _name;
      }
  
      function totalSupply() external view returns (uint256) {
          return _totalSupply;
      }
  
      function balanceOf(address account) external view returns (uint256) {
          return _balances[account];
      }
  
      function transfer(address recipient, uint256 amount) external returns (bool) {
          _transfer(msg.sender, recipient, amount);
          return true;
      }
  
      function allowance(address addressOwner, address spender) external view returns (uint256) {
          return _allowances[addressOwner][spender];
      }
  
      function approve(address spender, uint256 amount) external returns (bool) {
          _approve(msg.sender, spender, amount);
          return true;
      }
  
      function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) {
          _transfer(sender, recipient, amount);
          _approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "Transfer amount exceeds allowance"));
          return true;
      }
  
      function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
          _approve(msg.sender, spender, _allowances[msg.sender][spender].add(addedValue));
          return true;
      }
  
      function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
          _approve(msg.sender, spender, _allowances[msg.sender][spender].sub(subtractedValue, "Decreased allowance below zero"));
          return true;
      }
  
      function _transfer(address sender, address recipient, uint256 amount) internal {
          require(sender != address(0), "Transfer from the zero address");
          require(recipient != address(0), "Transfer to the zero address");
          require(amount <= _balances[sender], "Transfer amount exceeds balance");
  
          _balances[sender] = _balances[sender].sub(amount);
          _balances[recipient] = _balances[recipient].add(amount);
          emit Transfer(sender, recipient, amount);
      }
  
      function _approve(address addressOwner, address spender, uint256 amount) internal {
          require(addressOwner != address(0), "Approve from the zero address");
          require(spender != address(0), "Approve to the zero address");
  
          _allowances[addressOwner][spender] = amount;
          emit Approval(addressOwner, spender, amount);
      }
  
  }