1// SPDX-License-Identifier: MIT
 2pragma solidity ^0.8.17;
 3
 4contract Keccak256 {
 5    function hash(
 6        string memory _text,
 7        uint _num,
 8        address _addr
 9    ) public pure returns (bytes32) {
10        return keccak256(abi.encodePacked(_text, _num, _addr));
11    }
12}