data = input().split("-")
exam_stat = {}
ban_condition = False
banned_name = ""

# Генериране на речника:

while True:
    name = data[0]
    if name == "exam finished":
        break
    course = data[1]
    if course == "banned":
        banned_name = name
        ban_condition = True
        break
    grade = int(data[2])
    if course not in exam_stat:
        exam_stat[course] = [{name: [grade]}]
    else:
        exam_stat[course] += [{name: [grade]}]

    data = input().split("-")

# Запазва коло хора са се явили за всеки един език:

exam_len = {}
for x in exam_stat:
    exam_len[x] = len(exam_stat)