static void Main()
            {
                ListQueue <int> queue = new ListQueue <int>();

                foreach (int i in Enumerable.Range(1, 8))
                {
                    queue.EnQueue(i);
                }
                foreach (var item in queue)
                {
                    Console.WriteLine(item);
                }
                foreach (int i in Enumerable.Range(1, 9))
                {
                    queue.DeQueue();
                }
                foreach (var item in queue)
                {
                    Console.WriteLine(item);
                }
                Console.ReadKey();
            }