def debug(s):
    return s.replace('bugs','=').replace('bug','').replace('=','bugs')

'''
Take debugging to a whole new level:

Given a string, remove every single bug.

This means you must remove all instances of the word 'bug' from within a
given string, unless the word is plural ('bugs').

For example, given 'obugobugobuoobugsoo', you should return 'ooobuoobugsoo'.

Another example: given 'obbugugo', you should return 'obugo'.

Note that all characters will be lowercase and letters.

Happy squishing!

'''
