static void Main(string[] args)
{
SinglyLinkedList PlayList = new SinglyLinkedList();
PlayList.Add(2).Add(5).Add(6).Remove();
PlayList.Add(22);
PlayList.Add(2222);
PlayList.Add(2222222);
PlayList.Remove();
PlayList.RemoveAt(1);
PlayList.Display();
// SllNode target = PlayList.Find(22);
// Console.WriteLine(target.Value);
Console.WriteLine("Hello World!");
}