import datetime

target = datetime.datetime(2015, 1, 1)

res = []
for i in range(0, 365):
    td = datetime.timedelta(days=i)
    month, day = (target + td).strftime('%m %d').split(' ')
    # print(month, day)

    day1, day2 = divmod(int(day), 10)

    daycount = day1 + day2

    if int(month) == daycount:
        res.append(f'{month}/{day}')

print(len(res))