pragma solidity >= 0.5.0 < 0.7.0; import "../../examples_4/SafeMath.sol"; import "../lib/EvenOdd.sol"; contract SimpleStorage is EvenOdd{ using SafeMath for uint256; uint public storedData; constructor() public { storedData = 100; } function set(uint x) public { storedData = x; } function get() public view returns (uint retVal) { return storedData; } }