First, where is it? Can you put the title or link here?
Second, I already saw that you submit an answer use pure number to solve this problem, so I think maybe it is a different question.
Third, what should I do? Do you think I should delete this Kata?

Thanks again, your advice is helpful, and now I think it meet the requirements.
This was my first time to set a Kata, thanks for your help!

Thanks for your suggestion, this issue has been fixed.

odd should be even, and even should be odd