using System;

public class Program

{

    public static void Main()

    {

        int res = Add(10,2);

        int[] mar = {1,2,3,4};

        res = Add(mar);

        Console.WriteLine(res.ToString());

    }

    static int Add(params int[] ar)

    {

        int sum=0;

        foreach( int n in ar)

            sum+=n;

        return sum;

    }

}