using System;

public class Program

{

     public static void Main()

    {

        int Sum = 0;

        int Product = 0;

​

        Calculate(10, 20, out Sum, out Product);

​

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

​

    }

​

    public static void Calculate(int FN, int SN, out int Sum, out int Product)

    {

        Sum = FN + SN;

​

        Product = FN * SN;

    }

}