import java.util.Calendar;
import java.util.GregorianCalendar;
import java.util.stream.IntStream;

public class Main {

    public static void main(String[] args) {
        int yearTotalHappyDay = IntStream.rangeClosed(1, 12)
                .mapToObj(Month::of)
                .mapToInt(Month::getTotalHappyDay)
                .sum();

        System.out.println(yearTotalHappyDay);
    }

    private static class Month {
        private int month;
        private int maxDay;

        private Month(int month, int maxDay) {
            this.month = month;
            this.maxDay = maxDay;
        }

        public static Month of(int month) {
            int maxDay = new GregorianCalendar(2015, (month - 1), 1).getActualMaximum(Calendar.DAY_OF_MONTH);
            return new Month(month, maxDay);
        }

        public int getTotalHappyDay() {
            return IntStream.rangeClosed(1, maxDay)
                    .mapToObj(day -> isHappyDay(month, day))
                    .mapToInt(happyDay -> (happyDay) ? 1 : 0)
                    .sum();
        }

        private Boolean isHappyDay(int month, int day) {
            String twoDigitsDay = String.format("%02d", day);
            String tensPlace = twoDigitsDay.substring(0, 1);
            int tensPlaceNum = tensPlace.isEmpty() ? 0 : Integer.parseInt(tensPlace);
            int onesPlaceNum = Integer.parseInt(twoDigitsDay.substring(1, 2));
            return (month == (tensPlaceNum + onesPlaceNum));
        }
    }
}