Where do I place commando in .htaccess ?

I need to add this to my .htaccess file

php_value max_input_vars 5000
php_value max_execution_time 300
php_value post_max_size 50M
php_value upload_max_filesize 50M

my .htaccess file currently looks like this:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /wp/
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /wp/index.php [L]

# END WordPress

my .htaccess file is placed at the root of the wordpress folder.

where do I place the new code string and does it need another /ifmodule call ??

thanks in advance