I'm a bit late, you need to write a function needs to returns a string, not just print the result to the screen.

You pass a kata by writing a function/program that returns exactly what the question asks for. You input your code to the Kumite section by selecting (Fork). Hope this helps!

Currently Codewars platform is experiencing issues.

So there are two sections, the top one and the lower one. You type your code in the top one.