@jcoglan sorry for the literal screenshots, but check this out.

Wrote a library, then got asked to "put the problem into ChatGPT and see how close it gets to yours".

Well, it took me quite a long time to get the over-confident, defensive PoS to admit it f'ed up OCR* on a table.

(*kinda. I still don't know what exactly went wrong along the way, but since it barfs out and executes python code to get there, it might as well have screwed up some indices under the hood to mix up the table cells.)