Same thing happened to me. Looks like two order iteration is too much to pass the 10th test because n is such a large number. I think you should try reducing the number of iterations. When n is big, there are a lot of combinations you don’t really need to consider. This will make your algorithm more efficient.

I copy and pasted a solution for https://www.codewars.com/kata/545cdb4f61778e52810003a2/train/python from a website and hit submit to see if it'd pass all the randomized tests. I didn't hit attempt button, instead I tried to find codewars policy and ended up here. But it appears hitting submit already gave me 8 honor for it, woops.

Alright, thank you both for your help.
I'm working on it now, learning some new commands I've seen in other people's solutions before

See if this helps: https://docs.codewars.com/training/troubleshooting#timeout

Any idea what the problem is?

There is no errors in the tests. Timing out is not an issue.