Very strange filenames I must say that.
Anyway try this code in your DOCUMENT_ROOT/.htaccess
file:
RewriteEngine On
## If the request is for a valid directory
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^ - [L]
RewriteCond %{DOCUMENT_ROOT}/$1.php -f
RewriteRule ^([^/]+)/?$ /$1.php [L]
RewriteRule ^([^/]+)/([^/]+)/?$ /$1,$2.php [L]
RewriteRule ^([^/]+)/([^/]+)/([^/]+)/?$ /$1,$2,$3.php [L]