import datetime

y = 2015
f = lambda x: sum(map(int, list("{:0>2}".format(x))))
if __name__ == '__main__':
    cnt = 0
    d = datetime.date(y, 1, 1)
    td = datetime.timedelta(days=1)
    while d.year == y:
        if f(d.month) == f(d.day):
            cnt += 1
        d += td
    print(cnt)