#!/usr/bin/python3.6
import datetime

with open("/tmp/1", "r") as f:
   for line in f:
      a = {'second': 0, 'minute': 0, 'hour': 0, 'day': 0}
      result = ""
      time1 = datetime.datetime.strptime(line.split()[0] + " " + line.split()[1], "%m/%d/%Y %H:%M:%S")
      time2 = datetime.datetime.strptime(line.split()[2] + " " + line.split()[3], "%m/%d/%Y %H:%M:%S")
      timediff = int((time2 - time1).total_seconds())

      quotient, a['second'] = divmod(timediff, 60)

      if quotient < 60:
         a['minute'] = quotient
      else:
         quotient, a['minute'] = divmod(quotient, 60)
         if quotient < 24:
            a['hour'] = quotient
         else:
            a['day'], a['hour'] = divmod(quotient, 24)
         
      for k, v in a.items():
         if v == 1:
            result = str(v) + " " + k + " " + result
         if v > 1:
            result = str(v) + " " + k + "s " + result
      print(line.strip() + " --- " + result)