How to deny access to all folders except those specified in nginx?

Question

Nginx

There is a site, the url structure looks like this:
https:\\site\folder1\any-characters
https:\\site\folder2\any-characters
, etc. Tell me how to write a rule in nginx that allows access to folder1, folder2 ... and returns a 404 error for all other addresses?

Answer 1

I tried not to specify root and for each folder do location and specify root there?