Redirect for all subdomains to their folders?

Question

htaccess

Good afternoon!
It is necessary to set up a redirect without changing the url for all regional subdomains to folders located in the root directory of the main site with the same names (moscow.site.ru > site.ru/moscow), without writing their names in htaccess, but using some universal method .
The following code currently works:
RewriteCond %{HTTP_HOST} ^dzerzhinsk\.xn--80ajybdmjbd1a\.xn--p1ai$
RewriteCond %{REQUEST_URI} !/dzerzhinsk/
RewriteRule ^(.*)$ /dzerzhinsk/$1 [L]
and so for all subdomains, of which there are 157 pieces, I want to reduce htaccess every 100 times, is it possible to do this?

Answer 1

RewriteCond %{HTTP_HOST} ^(?>www\.|)([^.]+)\.xn--80ajybdmjbd1a\.xn--p1ai$
RewriteCond %1.%{REQUEST_URI} !^([^.]+)./\1/
RewriteRule ^(.*)$ /%1/$1 [L]