You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(12E,14Z,16E)-12-methylpentacyclo[9.9.2.02,7.08,21.018,22]docosa-1(21),2,4,6,8,10,12,14,16,18(22),19-undecaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H16
assistant