using System;

public class Program

{

    public static int Add(params int[] a)

    {

        int result = 0;

        for(int i = 0 ; i < a.Length; i++)

        {

            result += a[i];

        }

        return result;

    }

    public static void Main()

    {

        int rst = Add(1,2,3,4,5,6,7,8);

        Console.WriteLine(rst);

    }

}