08. On Time for the Exam

exam_hour = int(input())
exam_minutes = int(input())
hour_to_arrive = int(input())
minutes_to_arrive = int(input())
exam_time = exam_hour *  60 + exam_minutes
arive_time = hour_to_arrive * 60 + minutes_to_arrive
if exam_time < arive_time:
    if arive_time - exam_time < 60:
        print(f"Late\n{arive_time - exam_time} minutes after the start")
    elif arive_time - exam_time > 59:
        if (arive_time - exam_time % 60) < 10:
            print(f"Late\n{(arive_time - exam_time) // 60}:0{(arive_time - exam_time) % 60} hours after the start")
        else:
            print(f"Late\n{(arive_time - exam_time) // 60}:{(arive_time - exam_time) % 60} hours after the start")
elif exam_time == arive_time or exam_time - arive_time <= 30:

    print(f"On time\n{(exam_time - arive_time) % 60} minutes before the start")
else:
    if exam_time - arive_time < 60:
        print(f"Early\n{(exam_time - arive_time) % 60} minutes before the start")
    elif exam_time - arive_time > 59:
        if ((exam_time - arive_time) % 60) < 10:
            print(f"Early\n{(exam_time - arive_time) // 60}:0{(exam_time - arive_time) % 60} hours before the start")
        else:
            print(f"Early\n{(exam_time - arive_time) // 60}:{(exam_time - arive_time) % 60} hours before the start")