hour_exam = int(input())
minutes_exam = int(input())
hour_arrival = int(input())
minutes_arrival = int(input())

exam_time_minutes = (hour_exam * 60) + minutes_exam
arrival_time_minutes = (hour_arrival * 60) + minutes_arrival

diff = abs(exam_time_minutes - arrival_time_minutes)

hour = diff // 60
minutes = diff % 60

if exam_time_minutes == arrival_time_minutes:
    print("On time")

elif exam_time_minutes > arrival_time_minutes:
    if diff <= 30:
        print("On time")
        print(f"{diff} minutes before the start")
    elif 30 < diff <= 59:
        print("Early")
        print(f"{diff} minutes before the start")
    elif diff > 59:
        print("Early")
        print(f"{hour}:{minutes:02d} hours before the start")
# тук трябва да е елиф !!!
# if arrival_time_minutes > exam_time_minutes:
elif exam_time_minutes < arrival_time_minutes:
    print("Late")
    if diff < 60:
        # Тук няма смисъл от това 02d, в конкретния случай бърка програмата!
        # print(f"{diff:02d} minutes after the start")
        print(f"{diff:02d} minutes after the start")
    else:
        print(f"{hour}:{minutes:02d} hours after the start")