using System;

public class Program

{

    public static void Main()

    {

        static void Main(string[] args)

   {

     ArrayList list = new ArrayList();

     list.Add(2);

     list.Add(3);

     list.Add(4);

     int sum = 0;

     for (int i = 0; i < list.Count; i++)

       {

         int value = (int)list[i];

         sum = sum + value;

       }

   Console.WriteLine("Sum = " + sum);                    

     }

   }

}

​

    }

}