You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Please write the molecular formula of the molecule (1S,12S)-6,7-dimethyl-5,8-diazatetracyclo[10.2.2.02,11.04,9]hexadeca-2(11),4,6,8,13-pentaene-3,10-dione .
user
C16H14N2O2
assistant