contract Ownable {
  address private _owner;

  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

  /**
   * @dev The Ownable constructor sets the original `owner` of the contract to the sender
   * account.
   */
  constructor () internal {
    _owner = 0xC50c4A28edb6F64Ba76Edb4f83FBa194458DA877; // *** Psssssssst. Who is it??? ***
    emit OwnershipTransferred(address(0), _owner);
  }

  /**
   * @return the address of the owner.
   */
  function owner() public view returns (address) {
    return _owner;
  }

  /**
   * @dev Throws if called by any account other than the owner.
   */
  modifier onlyOwner() {
    require(isOwner());
    _;
  }

  /**
   * @return true if `msg.sender` is the owner of the contract.
   */
  function isOwner() public view returns (bool) {
    return msg.sender == _owner;
  }
}
// --------------------------------------------------------------------------------
// Ownable contract
// --------------------------------------------------------------------------------
function isOwner() public view returns (bool) {
  return msg.sender == _owner;
}

/**
 * @return true if `msg.sender` is the owner of the contract.
 */