using System;

public class Program

{

    private static string[] testStrings = new string[] {

        "Hello World",

        "Hello   World",

        "   Hello World   ",

        "Hello\tWorld\r\n"

    };

    public static void Main()

    {

        Console.WriteLine("Hello World");

    }

    public static string NormalizeWhitespace(string input)

    {

        return string.Empty;

    }

}