using System;

public class Program

{

    public static void Main()

    {

        int x = 20, y = 3, z = 4;

        int ans;

        ans = x + y; 

        ans = x - y; 

        ans = x * y; 

        ans = x / y; 

        ans = x % y; 

        ans = x % z; 

        ans = y / z; 

        ans = y % z; 

    }

}