using System;

public class Program

{

    public class Node {

        public int Value;

        public Node NextNode;

        public Node(int number) {

            Value = number;

            NextNode = null;

        }

    }

    public class Query {

        public Node Head;

        public Query(int number) {

            Head = new Node(number);

        }

        public void AddToEnd(int number) {

            Node index = Head;

            while(index.NextNode != null) {

                index = index.NextNode;

            }

            index.NextNode = new Node(number);

        }

        public string GetView() {

            Node index = Head;

            String result = "";

            while(index.NextNode != null) {

                result += index.Value + " ";

                index = index.NextNode;

            }

            result += index.Value;

            return result;

        }

    }

    public static void Main()

    {

        //Console.WriteLine("Hello World");

        Query query = new Query(1);

        query.AddToEnd(5);

        query.AddToEnd(6);

        Console.WriteLine(query.GetView());

    }

}