refactor: Make exports explicit, reuse functions
refactor: Make exports explicit, reuse functions

Bugfry/exercises,Bugfry/exercises,Bugfry/exercism,Bugfry/exercises,Bugfry/exercises,Bugfry/exercism,Bugfry/exercism,Bugfry/exercism,Bugfry/exercises,Bugfry/exercism,Bugfry/exercism,Bugfry/exercises