input: Write a python function to print "Happy Holidays" n times.
  assert happy_holidays(3) == ["Happy Holidays", "Happy Holidays", "Happy Holidays"]
  assert happy_holidays(5) == ["Happy Holidays", "Happy Holidays", "Happy Holidays", "Happy Holidays", "Happy Holidays"]
  assert happy_holidays(0) == []
output: def happy_holidays(n):
      return ["Happy Holidays"] * n