using System;

using System.Web;

using Microsoft.Security.Application;

public class Program

{

    public static void Main()

    {

        string cleaned = HttpUtility.HtmlDecode("derp&");

        string x = Sanitizer.GetSafeHtmlFragment(cleaned);

        string y = HttpUtility.HtmlDecode(org);

​

​

        Console.WriteLine(x);

        Console.WriteLine(y);

    }

}