// Main Method
    public static void Main(string[] args)
    {
        // Creating Object
        overload ol = new overload();

        int sum1 = ol.Add(20, 30);

        Console.WriteLine("sum of the two variables=" + sum1);


        int sum2 = ol.Add(22, 20, 15);

        Console.WriteLine("sum of the three variables=" + sum2);
        Console.ReadLine();
    }