using System;

using System.Net;

using System.Security.Cryptography.X509Certificates;

public class Program

{

    public static void Main()

    {

        var url="https://lekarskyemail.cz/ezprava/download/bundle.p7b";

        var coll=new X509Certificate2Collection();

        coll.Import(new WebClient().DownloadData(url));

        foreach(var cert in coll)  {

            Console.WriteLine(cert.GetNameInfo(X509NameType.SimpleName, false));

        }

    }

}