Solve challenge at http://letsrevolutionizetesting.com/challenge

Program.cs

using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Threading.Tasks;

namespace RevolutionizeTesting
{
    class Program
    {
        static void Main(string[] args)
        {
            bool patterncontinues = true;
            String accessURL = "http://letsrevolutionizetesting.com/challenge?id=756775492";

            while (patterncontinues)
            {
                int index = accessURL.IndexOf("?");
                accessURL = accessURL.Insert(index, ".json");

                HttpWebRequest request = (HttpWebRequest)WebRequest.Create(accessURL);
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                TextReader reader = new StreamReader(response.GetResponseStream());
                String responseText = reader.ReadToEnd();
                

                Dictionary<String, String> responsedict = new Dictionary<string, string>();
                responsedict = JsonConvert.DeserializeObject<Dictionary<string, string>>(responseText);
                try
                {
                    accessURL = responsedict["follow"];
                }
                catch (KeyNotFoundException)
                {
                    patterncontinues = false;
                    Console.Write(responseText);
                }
            }

            Console.ReadKey();
        }
    }
}