public static void Main()
        {
            Cube c = new Cube();

            c.RotateFaceClockwise(c.Left);
            Console.WriteLine(c.Upper);
            c.RotateFaceClockwise(c.Left);
            Console.WriteLine(c.Upper);
            c.RotateFaceClockwise(c.Left);
            Console.WriteLine(c.Upper);
            c.RotateFaceClockwise(c.Left);
            Console.WriteLine(c.Upper);

            Console.Read();
        }