Friendly urls redirect

Hello I’m trying to redirect in order to align with my changes to make friendly URLs.

Old format:

http://javapro.org/blog/2016/09/30/como-solucionar-error-de-bios-laptop-lenovo

new format:

http://javapro.org/blog/como-solucionar-error-de-bios-laptop-lenovo/

Attempts:

Regex: /[0-9][0-9][0-9][0-9]/(.*)
Page: /blog/$1

The page I need help with: [log in to see the link]