using System;

using HtmlAgilityPack;

public class Program

{

    public static void Main()

    {

        // define htmldocument

        var doc = new HtmlAgilityPack.HtmlDocument();

        // declare HTMLWeb

        HtmlWeb web = new HtmlWeb();

        // here loading document for specfic URL

        doc = web.Load("https://www.technologycrowds.com/2019/06/sha-512-hash-using-c-sharp.html");

        // here searching for specific words

        var ress = doc.DocumentNode.SelectSingleNode("//*[text()[contains(., 'Working')]]").InnerText;

        // now displaying final output

        Console.WriteLine(ress);

    }

}