using System;

using System.Web;

public class Program

{

    public static void Main()

    {

        var input = "<xml class='default' [data-storage]=\"true\"></xml>";

        var escapedInput = System.Uri.EscapeDataString(input);

        var encodedInput = HttpUtility.UrlEncode(input);

        var escapedOutput = System.Uri.UnescapeDataString(encodedInput);

        var decodedOutput = HttpUtility.UrlDecode(encodedInput);

        Console.WriteLine("Hello World");

        Console.WriteLine(input);

        Console.WriteLine(escapedInput);

        Console.WriteLine(encodedInput);

        Console.WriteLine(escapedOutput);

        Console.WriteLine(decodedOutput);

    }

}