import java.util.Calendar;
import java.util.Scanner;
import static java.lang.System.*;
public class Main {
public static void main(String[] args) {
Scanner scan = new Scanner(in);
int d1 = scan.nextInt();
int m1 = scan.nextInt();
int y1 = scan.nextInt();
int d2 = scan.nextInt();
int m2 = scan.nextInt();
int y2 = scan.nextInt();
out.println(libraryFine(d1, m1, y1, d2, m2, y2));
}
public static int libraryFine(int d1, int m1, int y1, int d2, int m2, int y2) {
Calendar response = Calendar.getInstance();
Calendar deadline = Calendar.getInstance();
response.set(y1, m1, d1);
deadline.set(y2, m2, d2);
if (0 >= response.compareTo(deadline)) {
return 0;
}
if (y1 == y2) {
if (m1 == m2) {
return Math.abs(d2 - d1) * 15;
}
return Math.abs(m2 - m1) * 500;
} else {
return 10000;
}
}
}
