Is this possible? (Chat GPT and Gutenberg) Insert Code to produce output

Hello everyone,

I am using this website just for the sake of learning. I was wondering, would it be possible and how advanced skills would I need to do the following:

Have two boxes

Box 1(left) blank one where you put a paragraph

Box 2 (right) blank one that gives you a shorter version of the paragraph you put in the previous box

From what I understand, this code is easily accessible in ChatGPT. My question is, ok I have the code, now what?

Thank you all

The page I need help with: [log in to see the link]