using System;

public class Program

{

    public static void Main()

    {

     int abc;

        abc = 10;

        Console.WriteLine("result1 = {0}",abc);

        abc *= 5; // abc = abc+5

        Console.WriteLine("result2 = {0}",abc);

        Console.WriteLine("--------------------------------");

        int x,y,z;

        x = 21;

        Console.WriteLine("Result3 = {0}",x);

        Console.WriteLine("Result4 = {0}",x++); // x = x+1 ; 

        Console.WriteLine("Result5 = {0}",x);

        //Console.WriteLine("Hello World");

    }

}