i have this and i need correct nginx rewrite rules
i don't have apache, nginx only
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
START v4 SEO URL BACKWARD COMPATIBILITY
RewriteCond %{QUERY_STRING} (.)$
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule cat([0-9]+)(.[a-z]{3,4})?(.)$ index.php?a=category&cat_id=$1&%1 [NC]
RewriteCond %{QUERY_STRING} (.*)$
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule prod([0-9]+)(.[a-z]{3,4})?$ index.php?a=product&product_id=$1&%1 [NC]
RewriteCond %{QUERY_STRING} (.*)$
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule info([0-9]+)(.[a-z]{3,4})?$ index.php?a=document&doc_id=$1&%1 [NC]
RewriteCond %{QUERY_STRING} (.*)$
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule tell([0-9]+)(.[a-z]{3,4})?$ index.php?a=product&product_id=$1&%1 [NC]
RewriteCond %{QUERY_STRING} (.)$
RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule saleItems(.[a-z]+)?(\?.)?$ index.php?a=saleitems&%1 [NC,L]
END v4 SEO URL BACKWARD COMPATIBILITY
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteCond %{REQUEST_URI} !=/favicon.ico
RewriteRule .*?$ index.php?seo_path=$1 [L,QSA]
</IfModule>