Beer Stock

needed_beers = int(input())
delivered_beers = 0
command = input()

while command != "Exam Over":
    package = command.split(' ')
    amount = int(package[0])
    type = package[1]

    if type == "sixpacks":
        amount *= 6
    elif type == "cases":
        amount *= 24

    delivered_beers += amount
    command = input()

delivered_beers -= int(delivered_beers / 100)
diff = abs(needed_beers - delivered_beers)
cases = int(diff / 24)
sixpacks = int(diff % 24 / 6)
beers = int(diff % 6)

if delivered_beers >= needed_beers:
    print(f"Cheers! Beer left: {cases} cases, {sixpacks} sixpacks and {beers} beers.")
else:
    print(f"Not enough beer. Beer needed: {cases} cases, {sixpacks} sixpacks and {beers} beers.")