You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S)-1-[2,6-difluoro-4-[2-[3-(fluoromethyl)azetidin-1-yl]ethoxy]phenyl]-8-fluoro-2-(2-fluoro-2-methylpropyl)-1,3,4,9-tetrahydropyrido[3,4-b]indole is the IUPAC name of a molecule. Please give its molecular formula.
user
C27H30F5N3O
assistant