mod_rewrite htaccess redirect on specific request

Question

is there a way to make mod_rewrite redirect all urls contain the following request:

?do=page&f=*

to a specific page? for example:

http://example.com/index.php?do=page&f=2
http://example.com/index2.php?do=page&f=4
http://example.com/page.php?do=page&f=22

to:

http://example.com/custom.php