using System;

using System.Web;

public class Program

{

    public static void Main()

    {

        var url = "http://stackoverflow.com/questions?page=4&sort=newest";

        var parameters = HttpUtility.ParseQueryString(new Uri(url).Query);

        var pageParam = parameters.Get("page");

        var sortParam = parameters.Get("sort");

        Console.WriteLine(pageParam);

        Console.WriteLine(sortParam);

    }

}