import java.time.LocalDate;
import java.time.format.DateTimeFormatter;
import java.time.temporal.ChronoUnit;
import java.util.Scanner;


public class _07_DaysBetweenTwoDates {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        String beginDate = sc.nextLine();
        String endDate = sc.nextLine();

        LocalDate start = LocalDate.parse(beginDate, DateTimeFormatter.ofPattern("d-MM-uuuu"));
        LocalDate end = LocalDate.parse(endDate, DateTimeFormatter.ofPattern("d-MM-uuuu"));
        long result = ChronoUnit.DAYS.between(start, end);
        System.out.println(result);
    }

}