Your code is not readable.
You will never pass code review on production

• read the instructions very thoroughly
• perhaps use console to know what your input is
• carefully compare your output to the expected values

OP solved it, closing

Read the description again, you're not asked to check if the input is a palindrome number.

You need to return your output and not print it to the console. All katas on this website work like this. Returning the value, means the value is retained from that function call. The value retained can be checked and checked for equality against the expected answer. Printing to the console is hard to check for equality.