• read this paragraph of docs to see how to post code properly
• read this paragraph of FAQ to see how to find inputs for failing tests, reproduce them locally, and debug them in your IDE
• read this post for possible hint. I do not know if it's actually your issue because I cannot run your code, but that's the problem the most people miss.

Think of it as its index if you put it in a sorted list.
But I doubt that solution would work since it would be really slow.

1. https://github.com/codewars/codewars.com/wiki/Markdown-Formatting#block-code-formatting
2. https://github.com/codewars/codewars.com/wiki/Troubleshooting-your-solution#i-get-max-buffer-size-reached-15-mib

Please read this: https://github.com/codewars/codewars.com/wiki/Markdown-Formatting

return the value, not print

Read this: https://github.com/codewars/codewars.com/wiki/Troubleshooting-your-solution

With so little information there is nothing we can do.