F ChatGPT. All my homies use Bard

The hashtag is used to mark the comment. When in doubt, look at the sample tests.

I took way longer than I needed to for this, because I thought those messages like " 'a' occurred twice" which were used for guidance, I thought was what needed to be returned. Only to find out it was much simpler than that. Maybe the comments should've had better separation from the expected results, maybe under the line or a tab spacing.