from pprint import pprint as p
file = open('input.txt')
lines = list(map(list, file.readlines()))

sep = [[]]
for x in lines:
    if x[0] == '\n':
        sep.append([])
    sep[len(sep)-1] += (x[:-1] + [" "])

people = []
for x in sep:
    d = dict()
    for h in "".join(x).split():
        if h[:3] != 'cid':
            d[h[:3]] = h[4:]
    people += [d]

count = 0
for x in people:
    print(x, len(x))
    count += (len(x) == 7)


print(count)