Fix emails code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace demos
{
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, string> emails = new Dictionary<string, string>();
            bool lol = true;
            do
            {
                string name = Console.ReadLine();
                if (name == "stop") { break; }
                string email = Console.ReadLine();
                emails[name] = email;
                int emailLenght = emails[name].Length;
                if (emails[name][emailLenght - 1] == 's' && emails[name][emailLenght - 2] == 'u' || emails[name][emailLenght - 1] == 'k' && emails[name][emailLenght - 2] == 'u')
                {
                    emails.Remove(name);
                }

            }
            while (lol == true);
            foreach (KeyValuePair<string, string> mails in emails) { Console.WriteLine($"{mails.Key} -> {mails.Value}"); }
        }
    }
}