using System;
using System.Text.RegularExpressions;

    class ParsAnURL
    {
        static void Main()
        {
            string url = "https://www.devbg.org/forum/index.php";

            Match protocol = Regex.Match(url, @"\b\w+");
            Console.WriteLine("[protocol] = \"{0}\"", protocol);

            url = Regex.Replace(url, protocol.ToString() + @"\W+", "");
            Match server = Regex.Match(url, @"\w*\W*\w+\W+\w+");
            Console.WriteLine("[server] = \"{0}\"", server);

            url = Regex.Replace(url, server.ToString(), "");
            Console.WriteLine("[resourse] = \"{0}\"", url);


        }
    }