import datetime
from dateutil.relativedelta import relativedelta

d = datetime.datetime(2015, 1, 1)
e = d + relativedelta(years=1)
hd = 0
while d < e:
    if d.month == sum([int(n) for n in list(str(d.day))]):
        hd += 1
    d += relativedelta(days=1)
print(hd)