Trainegram

using System;
using System.Text.RegularExpressions;

namespace _01.Trainegram
{
    public class StartUp
    {
        public static void Main()
        {
            string pattern = @"^(<\[[^A-Za-z0-9\n]*]\.)(\.\[[A-Za-z0-9]*]\.)*$";
            Regex regex = new Regex(pattern);
            while (true)
            {
                string train = Console.ReadLine();
                if (train == "Traincode!")
                {
                    break;
                }
                Match match = regex.Match(train);
                if (match.Success)
                {
                    Console.WriteLine(match.ToString());
                }
            }
        }
    }
}