I just migrated one of my old websites to wordpress but running into issues with the 301’s of the old url’s

old url
/11/companyname

new url
/office/companyname/

This is the code i came up with

RewriteEngine On
RewriteRule ^([a-zA-Z-]+)/(.*)?$ /office/$2/ [R=301,L]

It redirects fine when i add the trailing slash i.e. /11/companyname/ but not without.