Kewlio: I'll see you guys next time

Kind of wish I had been able to do more Advent of Code this year, but I ended up falling off hard at day 7 :/ not sure if I'm getting rusty or what.

Why are elves like this? What even is the deal with these bizarre-ass games they have?

Plans for this year's Advent of Code: learn unit tests.

A bit silly that Haxe had its own unit test system until 4.0.0, and now it's a library, but I imagine there's a reason for that.