static void Main(string[] args) { MyLinkedList <int> list = new MyLinkedList <int>(); list.InsertAfter(11); list.InsertFirst(5); list.InsertFirst(6); list.InsertFirst(7); list.InsertAfter(1); list.InsertAfter(81); list.InsertAfter(10); list.InsertAfter(-1); list.DeleteFirst(); list.DeleteAfter(); Node <int> node = list.GetNode(7); if (node == null) { Console.WriteLine("Element is apsent"); } else { Console.WriteLine("Elemetn is present"); } Console.WriteLine("Lenght = {0}", list.length); Console.ReadKey(); }