Exam Schedule

hours = int(input())
minutes = int(input())
day_part = input()
hours_added = int(input())
minutes_added = int(input())

result = (hours + hours_added) * 60 + minutes + minutes_added
total_hours = int(result / 60 % 24)
total_minutes = result % 60

day_part = ("PM" if day_part == "AM" else "AM") if total_hours >= 12 else day_part
total_hours -= 12 if total_hours > 12 else 0

print(f"{total_hours:02}:{total_minutes:02}:{day_part}")