How to remove title change when navigating through pages?

Question

HTML

Wordpress, pinboardthm theme. When navigating through the pages, their headings change, as follows:
on page page 2 heading: ...... - Part 2
on page page 3 heading: ...... - Part 3
on page page 4 heading: .... .. - Part 4
on page page 5 heading: ...... - Part 5.
There is no such thing on the main page.
Tell me where to remove this function, or at least change it to ... page 2

Answer 1

figured out)

Answer 2

In the topic, go to editing and edit what you need there. header.php