How to ask only everything and on the page, keeping the sequence and discarding everything unnecessary?

Question

Python

There is an example - fb.ru/article/39772/samostoyatelnyie-chasti-rechi
You need to parse the content from here <p>and <h1-5>keeping the sequence, through bf4 and requests.
It turns out only <p>without <h1>or all <h1>after all <p>. And I need to keep the sequence.
Tell me how to do it?