looks like u solved it~~

No, it returns 300 if there are exactly three 3's, what happens if there are more than three?

It's exhausting to always see that those who understand the description very well are the ones that ask for a change. This LyranGod character understands it well enough to give us different versions of it.

If you need us to clarify something in the description, please ask a specific question. There is no reason to change the description.

If you keep reading it is explained.

solve("our code") = "edo cruo"
-- Normal reversal without spaces is "edocruo". 
-- However, there is a space after the first three characters, hence "edo cruo"
solve("your code rocks") = "skco redo cruoy"
solve("codewars") = "srawedoc" 

Would something like this be clearer?

In this Kata, we are going to reverse a string while maintaining the spaces (if any) in their original place.

Pls specify which words are not clear.

looks fine to me, please be specific

There is a bit of math involved, yes.

Inside your function: console.log(a, b, c); it'll appear above the test result.