new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  
  def toSeconds(h, m, s):
    return h * 3600 + m * 60 + s
  
  def toHoursMinutesAndSeconds(s):
    hours = s / 3600
    minutes = s % 3600 / 60
    seconds = s % 3600 % 60
    return (hours, minutes, seconds)
  
  print "10h 30m and 50s are {0} seconds".format(toSeconds(10, 30, 50))
  print toHoursMinutesAndSeconds(37850)
  
subject: Add seconds and hours exercise