Coffee

word = input()
words = ['dog', 'cat', 'movie', 'coding']
words_2 = ['DOG', 'CAT', 'MOVIE', 'CODING']
coffee = 0

while word != 'END':
    if coffee >= 5:
        print('You need extra sleep')
        break
    if word in words:
        coffee += 1
    if word in words_2:
        coffee += 2
    word = input()
else:
    print(coffee)