from datetime import date

i1 = [int(e) for e in input().split(" ")]
return_date = date(i1[2], i1[1], i1[0])

i2 = [int(e) for e in input().split(" ")]
expected_return_date = date(i2[2], i2[1], i2[0])

fine = 0

if return_date > expected_return_date:
    if return_date.year != expected_return_date.year:
        fine = 10000
    elif return_date.month != expected_return_date.month:
        fine = 500 * (return_date.month - expected_return_date.month)
    else:
        fine = 15 * (return_date.day - expected_return_date.day)

print(str(fine))