using System;

​

public class Program

{

    static void Calc(int a, int b, out int sum, out int difference, out int product)

        {

            sum = a + b;

            difference = a - b;

            product = a * b;

        }

    public static void Main(string[] args)

        {

            Console.Write("First Number:");

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

            Console.Write("Second Number:");

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

            int sum, difference, product;

            Calc(num1, num2, out sum, out difference, out product);

            Console.WriteLine("The sum of {0} and {1} is {2}. The Difference of {0} and {1} is {3}. The product of {0} and {1} is {4}.",num1, num2, sum, difference, product);

        }

}

​