08. On Time for the Exam

exam_hour = int(input())
exam_minutes = int(input())
# 9:30 -> минути
exam_in_minutes = exam_hour * 60 + exam_minutes # времето на изпита в минути

arrive_hour = int(input())
arrive_minutes = int(input())
# 9:40 -> минути
arrive_in_minutes = arrive_hour * 60 + arrive_minutes # времето на пристигане в минути

# Late
if arrive_in_minutes > exam_in_minutes:
    print("Late")
    late_time = arrive_in_minutes - exam_in_minutes
    if late_time < 60:
        print(f"{late_time} minutes after the start")
    else:
        # 90 -> час и минути
        late_time_hour = late_time // 60  # 2
        late_time_minutes = late_time % 60  # 30
        if late_time_minutes < 10:
            print(f'{late_time_hour}:0{late_time_minutes} hours after the start')
        else:
            print(f'{late_time_hour}:{late_time_minutes} hours after the start')
elif arrive_in_minutes == exam_in_minutes or exam_in_minutes - arrive_in_minutes <= 30:
    print("On time")
    if exam_in_minutes - arrive_in_minutes <= 30:
        print(f"{exam_in_minutes - arrive_in_minutes} minutes before the start")
elif exam_in_minutes - arrive_in_minutes > 30:
    print("Early")
    early_time = exam_in_minutes - arrive_in_minutes # с колко минути подраняваме
    # ако подраним с по-малко от 1 час( 60 минути)
    if early_time < 60:
        print(f"{early_time} minutes before the start")
    # ако подраним с час или повече
    else:
        # 90 -> час и минути
        early_time_hour = early_time // 60 # 2
        early_time_minutes = early_time % 60 #30
        if early_time_minutes < 10:
            print(f'{early_time_hour}:0{early_time_minutes} hours before the start')
        else:
            print(f'{early_time_hour}:{early_time_minutes} hours before the start')