import java.util.Scanner;
import java.util.Date;
import org.joda.time.DateTime;
import org.joda.time.Days;
public class DaysBetweenTwoDates {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        String startDate = input.nextLine();
        String endDate = input.nextLine();
        String[] firstDateSplitted = startDate.split("-");
        String[] secondDateSplitted = endDate.split("-");
        DateTime past = new DateTime(Integer.parseInt(firstDateSplitted[2]),
                Integer.parseInt(firstDateSplitted[1]),
                Integer.parseInt(firstDateSplitted[0]), 0,0);
        DateTime today = new DateTime(Integer.parseInt(secondDateSplitted[2]),
                Integer.parseInt(secondDateSplitted[1]),
                Integer.parseInt(secondDateSplitted[0]), 0,0);
        int days = Days.daysBetween(past, today).getDays();
        System.out.println(days);
    }

}