using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {   

        //Console.WriteLine(Program.Get_HTML("http://www.usnews.com/education/arab-region-universities/rankings?int=9e2808"));

        string data=Program.Get_HTML("http://www.usnews.com/education/best-global-universities/europe");

                //first data

                int startindex=data.IndexOf("h-taut");

                int newstartindex= startindex + 116;

                int endindex=data.IndexOf("</a>",newstartindex);

                String CollegeName=data.Substring(newstartindex,endindex-newstartindex).Trim(); 

                Console.WriteLine(CollegeName);

                //first data's link

                int firstlinkstartindex=newstartindex-86;

                int endlinkindex=data.IndexOf(">",firstlinkstartindex);

                String firstlink=data.Substring(firstlinkstartindex,endlinkindex-firstlinkstartindex).Replace("\""," ").Replace("arab-region","best-global");

                Console.WriteLine(firstlink);

                String kingsaudinfo=Program.Get_HTML(firstlink);

                //Console.WriteLine(kingsaudinfo);

                //Second data start here                                     

                int secondstartindex=newstartindex+CollegeName.Length + 812;

                int secondendindex=data.IndexOf("</a>",secondstartindex);

                string seconddata=data.Substring(secondstartindex,secondendindex-secondstartindex);

                Console.WriteLine(seconddata);

                int thirdstartindex=secondstartindex + seconddata.Length + 831;

                int thirdendindex=data.IndexOf("</a>",thirdstartindex);

                string thirddata=data.Substring(thirdstartindex,thirdendindex-thirdstartindex).Replace("amp;","");

                Console.WriteLine(thirddata);

                int fourthstartindex=thirdstartindex + thirddata.Length + 831 + 792;

                int fourthendindex=data.IndexOf("</a>",fourthstartindex);

                string fourthdata=data.Substring(fourthstartindex,fourthendindex-fourthstartindex);

                Console.WriteLine(fourthdata);

    }

    public static string Get_HTML(string Url)

{

    System.Net.WebResponse Result = null;

    string Page_Source_Code;

    try

    {

        System.Net.WebRequest req = System.Net.WebRequest.Create(Url);

        Result = req.GetResponse();

        System.IO.Stream RStream = Result.GetResponseStream();

        System.IO.StreamReader sr = new System.IO.StreamReader(RStream);

        new System.IO.StreamReader(RStream);

        Page_Source_Code = sr.ReadToEnd();

        sr.Dispose();

    }

    catch

    {

        // error while reading the url: the url dosen’t exist, connection problem...

        Page_Source_Code = "";

    }

    finally

    {

        if (Result != null) Result.Close();

    }

    return Page_Source_Code;

}

}

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