using System;
public class Program
{
public static void Main()
var a = 10;
var b = 1;
var c = 0;
c = a*b;
Console.WriteLine(c);
var d = 10;
var e = 1;
var f = 0;
f = d/e;
Console.WriteLine(f);
var g = 10;
var h = 0;
var i = 0;
i = g+h;
Console.WriteLine(i);
var j = 10;
var k = 0;
var l = 0;
l = j-k;
Console.WriteLine(l);
}