<PLEASE USE THE FOLLOWING TEMPLATE TO HELP YOU CREATE A GREAT POST!>
<Below this line, add a link to the EXACT exercise that you are stuck at.>
<In what way does your code behave incorrectly? Include ALL error messages.>
There was no error message but it returns 'empty" even the input is an alphabetical word.
<What do you expect to happen instead?>
It should return the original input if it’s correct. Please help me see what’s wrong with my code.
Replace this line with your code.
<do not remove the three backticks above>