static void Main(string[] args)
{
Console.WriteLine("Hello World!");
LinkList link = new LinkList();
link.Insert(5);
link.Insert(12);
link.Insert(43);
link.Insert(3);
bool result = link.Includes(5);
Console.WriteLine(result);
Console.WriteLine(link.ToString());
Console.WriteLine(link.KthFromEnd(2));
}
