It is not an error of the kata but a CW error. Report it as a bug: Forum-> Bugs, if you want.

You could simply print the input. Good luck and thanks for your post.

I got your reply about the other kata and admit my ignorance and acknowledge respect for your skills and creativity :)
The problem is that it's hard to correct my incorrect code without knowing the test input.

Is there anyway better than memoization for this kata? I kept getting runner.codewars.io Host Error messages(not the time out msg designed to tell you to optimize your code), not sure if it is my code or the server. My RUBY code passed all the basic tests but does not show any result when running all test cases
Error msg: This error was caused due to an issue processing the web request, not because of an issue executing your code. Please try again.