// Solidity program to // demonstrate how to // write a smart contract pragma solidity ^0.4.18; // Defining a contract contract Test { // Declaring state variables uint public var1; uint public var2; uint public sum; // Defining public function // that sets the value of // the state variable function set(uint x, uint y) public { var1 = x; var2=y; sum=var1+var2; } // Defining function to // print the sum of // state variables function get() public view returns (uint) { return sum; } } 0.4.18