def timeconvertor(time):
   day = time // (24 * 3600)
   time = time % (24 * 3600)
   hour = time // 3600
   time %= 3600
   minutes = time // 60
   time %= 60
   seconds = time
   print("d:h:m:s-> %d:%d:%d:%d" % (day, hour, minutes, seconds))
timeconvertor(int(input()))