You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-fluoro-9-[6-[6-(1-fluorocarbazol-9-yl)pyridin-2-yl]pyridin-2-yl]carbazole The above is the IUPAC name of a molecule. Write its molecular formula.
user
C34H20F2N4
assistant