import datetime

def book_fee(due_date: datetime.date, return_date: datetime.date) -> int:
    if return_date < due_date:
        return 0

    if (return_date.month, return_date.year) == (due_date.month, due_date.year):
        return 15 * (return_date.day - due_date.day)

    if due_date.year == return_date.year:
        return 500 * (return_date.month - due_date.month)

    return 10000


return_date = datetime.date(
    **dict(
        zip(["day", "month", "year"], [int(_) for _ in input().split(" ")])
    )
)
due_date = datetime.date(
    **dict(
        zip(["day", "month", "year"], [int(_) for _ in input().split(" ")])
    )
)

print(book_fee(due_date, return_date))