using System.Collections.Generic;

public class Program

{

    public void Case(string p)

    { Console.WriteLine(p.ToLower()); } 

    public static void Main()

    {

        // Makes list of strings with no def. size

        List<string> myWords = new List<string>();

        string s = Console.ReadLine();

        while(s!="Exit")

        {

            myWords.Add(s); // Add to list

            s = Console.ReadLine(); // Collect next word

        }

        myWords.ForEach(Case);

        myWords.Reverse();

        myWords.ForEach(Case);  

}