import calendar
c = calendar.Calendar()

happy_days = 0

def is_happy_day(month, day):
    if month == day // 10 + day % 10:
        return True
    else:
        return False

for month, m_list in enumerate(c.yeardayscalendar(2015, width=12)[0], start=1):
    for w_list in m_list:
        for day in w_list:
            if day == 0:
                continue
            if is_happy_day(month, day):
                happy_days += 1

print(happy_days)