calender_dict = {1:  31,
                 2:  28,
                 3:  31,
                 4:  30,
                 5:  31,
                 6:  30,
                 7:  31,
                 8:  31,
                 9:  30,
                 10: 31,
                 11: 30,
                 12: 31}

count = 0
for month, end_day in calender_dict.items():

    for day in range(1, end_day+1):

        sum_day = 0
        for ch in str(day):
            sum_day += int(ch)

        if month == sum_day:
            count += 1

print(count)