Had to dust off some old maths to understand this one :shame:

I think we'll mostly agree that this is cool, but isn't great for people who forgot (or never learned) the required math. So I got curious, should I write code like this even if some coworkers struggle to read it later? For the sake of performance, maybe? So I did some testing with hyperfine and... it depends, but it's pretty neat.

• With small values (all tests), no. My "dumb" answer was actually slightly (but still insignificantly) faster.
• With big enough values, though, there's no comparison. Math wins by far and the gap gets larger the higher you go.

Well, that's embarassing. Thank you for explaining, definitely not an issue.

The input isn't 'consecutive CApitals' that's what your function returned. Print the input to see what it is. Not a kata issue.