how to set permissions in SAMBA Ubuntu 20.04

I have a SAMBA server on ubuntu 20.04. I have a folder with sbfolders with different permissions for different users, then I create a folder that can be accessed by all users with 777 permissions. When a user creates a folder or adds a file, the 777 permissions are not set, permissions are set that only can he write to the file? Does anyone know how I can configure it so that when a user creates a folder inside, everyone has 777 permissions?

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