using System;
  
namespace Wrox
{
   class Client
   {
      public static int Main()
      {
         MathExample.Main();
         return 0;
      }
   }
  
   class MathExample
   {
      static int Add(int x, int y)
      {
         return x + y;
      }
  
      public static int Main()
      {
         int i = Add(5,10);
         Console.WriteLine(i);
         return 0;
      }
   }
}
