//Jan Kenneth B. Aniñon

using System;

public class Program

{

    public static void Main()

    {

        Console.Write("Input a sentence: ");

        string s = Console.ReadLine();

        string[] words = s.Split(' ');

        Array.Reverse(words);

        s = String.Join(" ", words);

        Console.WriteLine("Reverse sentence:" + " " + s );

    }

}