Inventory

journal = input().split(', ')

command_input = input()
while command_input != 'Craft!':
    args = command_input.split(" - ")
    command = args[0]
    if command == 'Collect':
        item = args[1]
        if not item in journal:
            journal.append(item)
    if command == 'Drop':
        item = args[1]
        if item in journal:
            journal.remove(item)
    if command == 'Combine Items':
        item = args[1].split(':')
        text = item[0]
        text1 = item[1]
        if text in journal:
            place = journal.index(text)
            journal.insert(place + 1, text1)
    if command == 'Renew':
        item = args[1]
        if item in journal:
            place = journal.index(item)
            journal.pop(place)
            journal.append(item)

    command_input = input()

print(", ".join(journal))