using System;

public class Program

{

    public static void Main()

    {

   String str;

    do

    {

    int num1;

    int num2;

    int r;

    Console.WriteLine("Enter numbre 1 :  ");

        num1 = int.Parse ( Console.ReadLine());

    Console.WriteLine("Enter numbre 2 :  ");

        num2 = int.Parse (Console.ReadLine());

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

        r = num1 + num2 ;

        Console.WriteLine( " result : " +  r);

        Console.WriteLine( "=======================");

        Console.WriteLine(" do you want tray Again : (Y/N)");

        str = Console.ReadLine();

    }while (str == "y" ||  str == "Y");

    Console.WriteLine( "===================================/////*****");    

    }

}