using System;

public class OutParameter

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

        int total=0;

        int product=0;

        Calculation(10,20, out total, out product);

        Console.WriteLine("Sum= {0} && Product={1}", total, product);

    }

    public static void Calculation( int FNum, int SNum, out int sum, out int product)

    {

        sum= FNum+SNum;

        product= FNum*SNum;

    }

}