using System;

public class Program

{

    public static void Main()

    {

        int sum;

        Console.WriteLine("enter a number");

        int num1 = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("enter sec number");

        int num2 = Convert.ToInt32(Console.ReadLine());

        sum = num1 + num2 ;

        Console.WriteLine("the sum is " + sum);

    }

}