using System;

public class Program

{

    public static void Main()

    {

        var test = "\ud83c\udff4\udb40\udc67\udb40\udc62\udb40\udc65\udb40\udc6e\udb40\udc67\udb40\udc7f";

        Console.WriteLine(test);

        Console.WriteLine(test.Length);

        var stringInfo = new System.Globalization.StringInfo(test);

        Console.WriteLine(stringInfo.LengthInTextElements);

    }

}