using System;

public class Program

{

    public static void Main()

    {

        string new_sentence, sentence;

        sentence = Console.ReadLine ();

        int k, j;

        string bin = " ";

        for(int i=sentence.Length-1; i>0; i--)

        {

            k=i+1;

            while(sentence[i]!= bin)

            {

                i++;

            }

            for(int j=i; j>=k; j--)

            {

                new_sentence += sentence[j];

            }

            i++;ss

        }

    }

}