I'm getting an error

Question

I'm getting array dim error on the code but don't know whu
https://code.sololearn.com/cpabQ90k8CId/?ref=app

Answer 1

I don't really understand the code but I got it to output something with a bit of edit and the text I included as inputs.

Btw, should the "y = ..." line be indented?
https://code.sololearn.com/cpzh57LRHhbW/?ref=app