?using System;
using System.Collections.Generic;
using System.Text;

namespace RS232
{
   public static class APP
    {
       public static int n;
       
       public static void WriteHex(string hex)
       {
           
       }

       public static void Add(int i)
       {
           n += i;
           System.Windows.Forms.MessageBox.Show(n.ToString());

       }
    }
}