using System;

using System.IO;

public class Program

{

    public static void Main()

    {

        Console.WriteLine(ToAbsoluteUrl("https://alibabagroup.com/en/global/home", "../ir/home"));

    }

    static string ToAbsoluteUrl(string a, string b)

    {

        return Path.GetFullPath(Path.Combine(a,b));

    }

}