static void Main(string[] args)
        {
            Kod obj = new Kod(7);
            int num = 0;

            while (obj.AddOne())
            {
                num++;
                System.Console.WriteLine("{0} {1}", num, obj.ToString());
            }
            while (obj.SubstractOne())
            {
                num--;
                System.Console.WriteLine("{0} {1}", num, obj.ToString());
            }
            System.Console.ReadKey();
        }