import sys
sys.setrecursionlimit(1000000)

print("Expert zo zoo to vie.")
raw = sys.stdin.read()
rows = raw.split("\n")
if rows[-1] == "":
    rows = rows[:-1]

pos = 0
question_count = 0
answer_count = 0
def bad_database():
    print("Chybna databaza")
    exit()
def load():
    global pos, question_count, answer_count

    if pos >= len(rows):
        bad_database()

    text = rows[pos]
    pos += 1

    if text == "":
        bad_database()

    if "?" == text[-1]:
        question_count = question_count + 1
        left = load()
        right = load()
        return (text, left, right)
    else:
        answer_count += 1
        return (text,)

tree = load()

if pos < len(rows):
    if rows[pos] != "":
        bad_database()

answers = rows[pos + 1:]

print("Pocet otazok:", question_count)
print("Pocet odpovedi:", answer_count)
print("Odpovedajte 'a' pre prvu moznost alebo 'n' pre druhu moznost.")