static void Main(string[] args) { DoublyLinkedList <int> doublyLinkedList = new DoublyLinkedList <int>(); doublyLinkedList.AddAt(0, 1); doublyLinkedList.AddAt(0, 23); doublyLinkedList.AddAt(1, 33); doublyLinkedList.AddFirst(99); doublyLinkedList.AddLast(100); doublyLinkedList.RemoveAt(2); doublyLinkedList.RemoveFront(); doublyLinkedList.RemoveEnd(); }