# POTD 6
# Author: Scott Wehrwein
# Date: 10/15/25
# Description: POTD 6

import sys

hour = int(sys.argv[1])
minute = int(sys.argv[2])

AM = sys.argv[3] == "AM"

if AM and hour == 12:
    hour = 0
else: # PM
    if hour != 12:
        hour += 12
        
if hour < 10:
    hour_str = f"0{hour}"
else:
    hour_str = str(hour)

if minute < 10:
    minute_str = f"0{minute}"
else:
    minute_str = str(minute)

        
print(hour_str, minute_str, sep=":")