using System;
using System.Linq;
using System.Collections.Generic;

namespace Inventory
{
    class Program
    {
        static void Main(string[] args)
        {
            List<string> collection = Console.ReadLine()
                .Split(", ")
                .ToList();

            string command = Console.ReadLine();

            while (command != "Craft!")
            {
                string[] commandToArray = command.Split(" - ").ToArray();

                if (commandToArray[0] == "Collect")
                {
                    string item = commandToArray[1];

                    if (!collection.Contains(item))
                    {
                        collection.Add(item);
                    }
                }
                if (commandToArray[0] == "Drop")
                {
                    string item = commandToArray[1];

                    if (collection.Contains(item))
                    {
                        for (int i = 0; i < collection.Count; i++)
                        {
                            if (collection[i] == item)
                            {
                                collection.Remove(item);
                            }
                        }
                    }
                }
                if (commandToArray[0] == "Combine Items")
                {
                    string oldItem = commandToArray[1].Split(":")[0];
                    string newItem = commandToArray[1].Split(":")[1];

                    if (collection.Contains(oldItem))
                    {
                        for (int i = 0; i < collection.Count; i++)
                        {
                            if (collection[i] == oldItem)
                            {
                                if (i < collection.Count - 1)
                                {
                                    collection.Insert(i + 1, newItem);
                                    break;
                                }
                                else
                                {
                                    collection.Add(newItem);
                                }
                            }
                        }
                    }
                }
                if (commandToArray[0] == "Renew")
                {
                    string item = commandToArray[1];

                    if (collection.Contains(item))
                    {
                        for (int i = 0; i < collection.Count; i++)
                        {
                            if (collection[i] == item)
                            {
                                string temp = collection[i];
                                collection[i] = collection[collection.Count - 1];
                                collection[collection.Count - 1] = temp;
                            }
                        }
                    }
                }
                command = Console.ReadLine();
            }
            Console.WriteLine(string.Join(", ", collection));
        }
    }
}