how_much_coffee_do_you_need

action = input()

coffees = 0
counter = 0

action_to_lower = ['coding', 'movie', 'dog', 'cat']
action_to_upper = ['CODING', 'MOVIE', 'DOG', 'CAT']

while action != 'END':
    counter += 1

    if action in action_to_lower:
        coffees += 1
    elif action in action_to_upper:
        coffees += 2

    action = input()

if counter < 5:
    print(coffees)
else:
    print('You need extra sleep')