A family of kookaburras are in my backyard.
I can't see them all, but I can hear them!
# How many kookaburras are there?
## Hint 
The trick to counting kookaburras is to listen carefully
* The males go ```HaHaHa```...
* The females go ```hahaha```...
* And they always alternate male/female
^ Kata Note : No validation is necessary; only valid input will be passed :-)
def kooka_counter(laughing):
    return laughing.count("Haha") + laughing.count("haHa") + bool(laughing)
def kooka_counter(laughing):
    return laughing.count("Haha") + laughing.count("haHa") + bool(laughing)