you have to completely change your approach. You cannot sort at any step of the while loop, for example. count is a bad idea too, since you do it in a loop which is itself inside another loop.

Did you import it?
from itertools import count

And count(0, 9) will generate an iterator of: 0, 9, 18, 27, 36, ...

Once it has a reply you can't delete your post.

Once it has a reply you can't delete your post, but it is fine, just remember to mark your post as having spoiler content (when posting code like this in a solution) and it won't be visible in the home page. This time I've marked both your posts for you.

Why are you posting again a solution without marking your post as having spoiler content?

Please, use spoiler flag, your post was visible in the home page.

Hi,
you are right :-) Thank you for pointing out this issue. I coorected my solution with a fork.