09. On Time for the Exam

hour_exam = int(input())
min_exam = int(input())
hour_stu = int(input())
min_stu = int(input())
hh = 0
mm = 0


if hour_exam == (hour_stu + 1):
    if min_exam < min_stu:
        mm = min_exam + (60 - min_stu)
    else:
        hh = hour_exam - hour_stu
        mm = min_stu - min_exam
        if mm == 0:
            print("Early")
            print(f"{hh}:{mm:02d} hours before the start")
        else:
            pass
    if min_exam == 0 and mm != 0:
        mm = 60 - min_stu
        print("On time")
        if min_stu == 00:
            pass
        else:
            print(f"{mm:02d} minutes before the start")
    else:
        if hour_exam == hour_stu:
            print("Early")
            print(f"{mm:02d} minutes before the start")
        elif min_exam != min_stu:
            print("Early")
            print(f"{mm:02d} minutes before the start")
elif hour_exam == hour_stu:
    mm = min_exam - min_stu
    if 0 <= mm <= 30:
        if min_exam == 0:
            mm = 60 - min_stu
            print("On time")
            if min_stu == 00:
                pass
            else:
                print(f"{mm:02d} minutes before the start")
        else:
            print("Early")
            print(f"{mm:02d} minutes before the start")
    elif 30 < mm < 59:
        print("Early")
        print(f"{mm:02d} minutes before the start")
    elif mm < 0:
        print("Late")
        print(f"{abs(mm):02d} minutes after the start")
elif hour_exam > hour_stu:
    hh = hour_exam - hour_stu
    mm = min_stu - min_exam
    print("Early")
    print(f"{hh}:{abs(mm):02d} hours before the start")
else:
    if min_stu < min_exam:
        mm = min_stu + (60 - min_exam)
        print("Late")
        print(f"{mm:02d} minutes after the start")
    else:
        hh = hour_stu - hour_exam
        mm = min_stu - min_exam
        print("Late")
        print(f"{hh}:{abs(mm):02d} hours after the start")