static void Main(string[] args)
        {
            SinglyLinkedList sl = new SinglyLinkedList();

            Console.WriteLine();
            Console.WriteLine("**Insert End***");

            sl.InsertNodeAtEnd(4);
            sl.InsertNodeAtEnd(5);
            sl.InsertNodeAtEnd(6);
            sl.printAllNodes();

            Console.WriteLine();
            Console.WriteLine("**Insert Start***");

            sl.InsertNodeAtStart(3);
            sl.InsertNodeAtStart(2);
            sl.InsertNodeAtStart(1);
            sl.printAllNodes();

            Console.WriteLine();
            Console.WriteLine("**Remove postion # 6***");
            sl.RemoveNodeFromPosition(6);
            sl.printAllNodes();

            Console.WriteLine();
            Console.WriteLine("**Remove postion # 4***");
            sl.RemoveNodeFromPosition(4);
            sl.printAllNodes();

            Console.WriteLine();
            Console.WriteLine("**Remove postion # 1***");
            sl.RemoveNodeFromPosition(1);
            sl.printAllNodes();

            Console.ReadLine();
        }