But you're only importing, right? I mean, you aren't returning anything nor receiving the arguments... Can you explain bit more, please?

what about now

How does this even work? I am new.

Interesting!!! Thanks alot

I am not sure where Codewars rules say thay you need to be as fast as possible :)

i mean, codewars is sbout doing it as fast as possible, even if its extremely ugly

beautiful, I learn a lot on this one...

At first glance it seems that this code is incomprehensible, but everything here is very simple and concise!

Nice Solution !!

I liike it.

contains is the function for "in" operator. When we import it as "include", that does the trick.

how does this even work?

Yet you're doing the same thing.

I solved this problem in a different way.
And, it would seem, you can forget about it,
BUT my exactly the same code then (exactly then) did not work!!!
And here, please, everything works - not justice

Checked it - it still works.
Recheck your code.
What is the error, exactly?

I did the same, BUT I got an ERROR - indicating the fact that separator -> empty separator (first test)