private static void Step4264()
 {
     Console.WriteLine();
     Console.WriteLine("4264");
     int[] in4264 = { 7, 12, 2, 9, 0, -1 };
     for (int i = 0; i < in4264.Length; i++)
     {
         try
         {
             StringBuilder result = Lab06.Task4264(
                 new StringBuilder(), in4264[i]);
             Console.WriteLine(result.ToString());
         }
         catch (ArgumentException e)
         {
             Console.WriteLine(e.Message);
         }
     }
 }