using System;
using System.Collections.Generic;
using System.Linq;
using System.Numerics;
using System.Text;
using System.Text.RegularExpressions;
namespace apps
{
    class Program
    {
        static string Get() { return Console.ReadLine(); }




        static void Main()
        {
            // santa helper
            int key = int.Parse(Get());
            //---------------------------------------
             string pattern = @"\@(?<name>[a-zA-Z]+)[\d\D]*(?<behavior>\!G\!)";
            //---------------------------------------
            List<string> allMatches = new List<string>(); // list for each line
            while (true)
            {
                string command = Get(); if (command == "end") { break; }
                char[] message = command.ToCharArray();
                string newstring = string.Empty;
                for (int i = 0; i < message.Length; i++){  newstring += (char)((int)message[i] - key); ;}
                allMatches.Add(newstring); //add to list
            }
            for (int i = 0; i < allMatches.Count; i++)
            {
                Match m = Regex.Match(allMatches[i], pattern);
                if (m.Success)
                {
                    string name = m.Groups["name"].Value;
                    Console.WriteLine(name);
                }
            }

        }// END MAIN

    }
}