08. On Time for the Exam

hour_of_exam = int(input())
minutes_of_exam = int(input())
hour_of_arrive = int(input())
minutes_of_arrive = int(input())

total_exam_minutes = hour_of_exam * 60 + minutes_of_exam
total_arrive_minutes = hour_of_arrive * 60 + minutes_of_arrive
time_difference = total_arrive_minutes - total_exam_minutes

if time_difference > 0:
    print("Late")
    if time_difference < 60:
        print(f"{time_difference} minutes after the start")
    else:
        hours_late = time_difference // 60
        minutes_late = time_difference % 60
        print(f"{hours_late}:{minutes_late:02d} hours after the start")
elif -30 <= time_difference <= 0:
    print("On time")
    if time_difference < 0:
        print(f"{abs(time_difference)} minutes before the start")
else:
    print("Early")
    early_time = abs(time_difference)
    if early_time < 60:
        print(f"{early_time} minutes before the start")
    else:
        hours_early = early_time // 60
        minutes_early = early_time % 60
        print(f"{hours_early}:{minutes_early:02d} hours before the start")