import datetime

start_date = datetime.datetime.strptime('2015/1/1', '%Y/%m/%d')
nof_happy = 0
for i in range(365):
    wdate = start_date + datetime.timedelta(days=i)
    wmon = wdate.month
    wday = wdate.day
    whappy = (wday // 10) + (wday % 10)
    if wmon == whappy:
        # print('{}/{}'.format(wmon, wday))
        nof_happy += 1

print(nof_happy)