Random1.sol

// Source: https://blog.finxter.com/how-to-generate-random-numbers-in-solidity/
pragma solidity ^0.8.0;
contract RandomNumbers{
    function random(uint number) public view returns(uint){
        return uint(keccak256(abi.encodePacked(block.timestamp,block.difficulty,  
        msg.sender))) % number;
    }
}