using System;

public class Program

{

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    static Node RemoveDuplicate(Node lst)

    {

        Node p = lst;

        Node lst1=null, p1=null,N;

        while (p!=null)

        {

            if(!IsExist(lst1,p.GetValue()))

               {

                    N=new Node(p.GetValue());

                   if(lst1==null)

                   {

                       lst1=N;

                       p1=N;

                   }

                   else

                   {

                       p1.SetNext(N);

                       p1=N;

                   }

               }

            p=p.GetNext();

        }

        return lst1;

    }

}