using System;

​

class Summenbildung

{

    public int summe (int a, int b)

    {

        return a + b;

    }

    public int summe (int a, int b, int c)

    {

        return a + b + c;

    }

    public int summe (int a, int b, int c, int d)

    {

        return a + b+ c + d;

    }

}

​

public class Program

{

    public static void Main(string[] args)

    {

        Summenbildung a = new Summenbildung();

        {

            Console.WriteLine("Summe ist: {0}", a.summe(14, 7));

            Console.WriteLine("Summe ist: {0}", a.summe(2, 5, 2));

            Console.WriteLine("Summe ist: {0}", a.summe(1, 4, 3, 9));   

        }

    }

}

​

​