using System;

​

//

// Please implement the Module.ReverseWords method so that given an input

//     string, it will reverse the string word by word.

//

​

public class Module

{

    public string ReverseWords(string s)

    {

        // ToDo: Implement this method.

        return s;

    }

}

​

public class Program

{

    public static void Main()

    {

        var inputString = "the sky is blue";      

        Console.WriteLine("Given input: \"{0}\"", inputString);

​

        var outputString = new Module().ReverseWords(inputString);

        Console.WriteLine("Returns output: \"{0}\"", outputString);

​

        var expectedString = "blue is sky the";

        Console.WriteLine("The output " + (outputString == expectedString ? "matches" : "doesn't match" + " the expected output"));

    }

}