/* 

March S. Meguillo

Daniel Aranas

 */

using System;

public class Program

{

    public static void Main()

    {

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

        string str=Console.ReadLine();

        int word_length = 0;

        String result = "";

    for (int i=0; i<str.Length; i++)

    {

        if (str[i] == ' ')

        {

            result = " " + result;

            word_length = 0;

        } else 

        {

            result = result.Insert(word_length, str[i].ToString());

            word_length++;

        }

    }

    Console.WriteLine("Reverse Sentence: " +result) ;

    }

    }