static void Main(string[] args)
{
Node head = null;
LinkedList.Append(ref head, 001);
LinkedList.Append(ref head, 002);
LinkedList.Append(ref head, 003);
LinkedList.Append(ref head, 004);
Console.WriteLine("Linked list:");
LinkedList.Print(head);
LinkedList.Reverse(ref head);
Console.WriteLine();
Console.WriteLine("Reversed Linked list:");
LinkedList.Print(head);
Console.WriteLine();
//LinkedList.PrintRecursive(head);
Console.WriteLine("Reverse of Reversed Linked list:");
LinkedList.ReverseUsingRecursion(head);
head = LinkedList.newHead;
LinkedList.PrintRecursive(head);
Console.ReadKey();
}