Access privileges

Hello,
Can you please describe the " =Tc/postgres + postgres=CTc/postgres +confluence=CTc/postgres". I want to give the same permissions to the different user on a new database.

List of databases
Name | Owner | Encoding | Collate | Ctype | Access privileges
------------+----------+----------+---------+---------+-------------------------
confluence | postgres | UTF8 | C | C | =Tc/postgres +
| postgres=CTc/postgres +
| confluence=CTc/postgres

Thanks,