using System;

public class Program

{

    public static void Main()

    {

        int n1, sum;

        Console.WriteLine("Insert first number: ");

        n1 = int.Parse(Console.ReadLine());

        Console.Write("Insert second number: ");

        int n2 = int.Parse(Console.ReadLine());

        sum = n1 + n2;

        Console.Write("n1 + n2 = ");

        Console.WriteLine(sum);

        Console.WriteLine("n1 + n2 = {0}", sum);

        Console.WriteLine("{0} + {1} = {2}" , n1, n2, sum);

    }

}