from datetime import datetime
def fine(returned,due):
    if int(returned[2])<1000:
        returned[2] = returned[2].zfill(4)
    if int(due[2])<1000:
        due[2] = due[2].zfill(4)
    
    due = datetime.strptime(" ".join(due),"%d %m %Y").date()
    returned = datetime.strptime(" ".join(returned),"%d %m %Y").date()
    if returned > due:
       if returned.year > due.year:
           return 10000
       if returned.month > due.month:

           return 500*(returned.month - due.month)
       if returned.day > due.day:
           return 15 * (returned.day - due.day)
    else:
       return 0
       
print(fine(input().split(" "),input().split(" ")))