        static void Main(string[] args)
        {
            MonitorSample sample = new MonitorSample();
            for (int i = 0; i < 10; i++)
                sample.AddElement(i);
            sample.PrintAllElements();
            sample.DeleteElement(0);
            sample.DeleteElement(5);
            sample.DeleteElement(7);
            sample.PrintAllElements();
            Console.Read();
        }
