public DoublyLinkedListNode(T item, DoublyLinkedListNode<T> next = null, DoublyLinkedListNode<T> prev = null)
            {
                Item = item;
                Next = next;
                Prev = prev;
            }
        }

        #region Properties_DDL
        /// <summary>
        /// Reference to the "front" of the list
        /// </summary>
        private DoublyLinkedListNode Head { get; set; }

        /// <summary>
        /// Reference to the "end" of the list
        /// </summary>
        private DoublyLinkedListNode Tail { get; set; }

        /// <summary>
        /// Number of items in the list
        /// </summary>
        public int Count { get; private set; }
        #endregion

        /// <summary>
        /// Add the item to the front of the list
        /// </summary>
        /// <param name="item">item to add</param>
        public void AddFront(int item)
        {
            //Adding to Empty List in Front
            if (this.head == null)
            {
                this.head = new DoublyLinkedListNode<U>(item);
                this.tail = this.head;
            }
            //Adding Item to Current List Front
            else
            {
                head.Prev = new DoublyLinkedListNode<U>(item);
                head.Prev.Next = head;
                head = head.Prev;
            }
            count++;