If URL contains /clientarea.php?urlhere redirect to /beta?urlhere

I have a question: if someone visits https://account.mysite.com/clientarea.php?action=contacts for example, using .htaccess how do I make it so the site redirects to https://account.mysite.com/beta?action=contacts автоматически? I'm not sure how to do it with the? после этого.

Спасибо всем!