#!/usr/bin/python

hour = input ("Enter hour of day: ")

# notice print also adds a newline at the end of the printing

if hour < 0 or hour > 23:
  print "Invalid hour"

elif hour >= 5 and hour <= 10:
  print "Good morning"

elif hour >= 11 and hour <= 16:
  print "Good afternoon"

elif hour >= 17 and hour <= 22:
  print "Good evening"

else:
  print "Hey its night, get in bed!"