How to download all files from the site?

Question

Computer networks

There is a tutorial, it is on the site.
The bottom line is that I do not remember the exact URL of this manual, and there is no link on the page.
The URL of this manual should be like http://sitename.ru/(name).pdf
How can I download this manual other than by searching through all the URLs? What is the best way to download if a search is inevitable (wget in a loop, I think it will take a very long time to do this)?
The name of the training manual definitely contains the number 1 and the length of the name lies in the range from 3 to 10 characters.

Answer 1

TeleportPro program