using System;

namespace Wrox
{
   class MainEntryPoint
   {
      static void Main(string[] args)
      {
         // This loop iterates through rows...
         for (int i = 0; i < 100; i+=10)
         {
            // This loop iterates through columns...
            for (int j = i; j < i + 10; j++)
            {
               Console.Write("  " + j);
            }
            Console.WriteLine();
         }
      }
   }
}
