Elegant concept. I found fine-tuning the functions got a bit tedious around lvl 10 or so, but maybe I was missing cleaner options!
Thanks! All levels have "elegant" solutions but they are not required to win; allowing fine tuning is part of the joke, it's more extreme! :)
I suspected there were always elegant ones - pleased to discover it's true!
I'm glad, good luck if you decide to search for them!