using System;

public class Program

{

    public static void Main()

    {

        LinkedList obj = new LinkedList();

        obj.AddNode(new LinkedList.Node(67));

        obj.AddNode(new LinkedList.Node(56));

        obj.AddNode(new LinkedList.Node(78));

        obj.TraverseList();

    }   

}

​

public class LinkedList{

    public Node head;

    public class Node{

    public int data;

    public Node Next;

        public Node(int d){//constructor

            data = d;

            Next = null;

        }

    }

    public void  AddNode(Node node){

        if( head == null)

            head = node;

        else{

            Node temp = head;

            while( temp.Next != null){

            temp = temp.Next;   

            }

            temp.Next = node;

        }

    }

    public void TraverseList(){

        Node current = head;

        while(current != null){

            Console.WriteLine(current.data);

            current = current.Next;

        }

    }

}