using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Problem_3___Tseam_Account
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> games = Console.ReadLine().Split(" ").ToList();
            string comand = Console.ReadLine();


            while (comand !="Play!")
            {
                string[] arr = comand.Split(' ').ToArray();
                string comandToDo = arr[0];
                string game = arr[1];
                if (comand == "Play!")
                {
                    break;
                }
                switch (comandToDo) {

                      case "Install":
                        if (!games.Contains(game))
                        {
                            games.Add(game);
                            foreach (var item in games)
                            {
                                Console.WriteLine(string.Join(' ', item));
                            }
                        }

                        break;
                    case "Uninstall":
                        if (games.Contains(game))
                        {
                            games.Remove(game);

                            foreach (var item in games)
                            {
                                Console.WriteLine(string.Join(' ', item));
                            }
                        }

                        break;
                    case "Update":
                        if (games.Contains(game))
                        {
                            games.Remove(game);
                            games.Add(game);
                        }
                        foreach (var item in games)
                        {
                            Console.Write(string.Join(" ",item));
                        }

                      break;
                    case "Expansion":

                        string[] Exppend = arr[1].Split("-").ToArray();
                        string gametoExpend = Exppend[0];
                        string expend = ":"+ Exppend[1];
                        if (games.Contains(gametoExpend))
                        {

                        }

                        break;
                }

            }
        }
    }
}