03. Inventory (Plamena Kukleva)

journal = input().split(", ")
command = input()

while not command == "Craft!":
    current_command = command.split(" - ")
    name_of_command = current_command[0]
    item = current_command[1]

    if name_of_command == "Collect":
        if item not in journal:
            journal.append(item)

    elif name_of_command == "Drop":
        if item in journal:
            journal.remove(item)

    elif name_of_command == "Combine Items":
        items = item.split(":")
        old_item = items[0]
        new_item = items[1]
        if old_item in journal:
            journal.insert(journal.index(old_item)+1, new_item)

    elif name_of_command == "Renew":
        if item in journal:
            journal.remove(item)
            journal.append(item)
    command = input()

print(", ".join(journal))