You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-fluoro-3-[4-(5-fluorothiophen-2-yl)-1H-imidazo[4,5-c]pyridin-2-yl]-5-pyrimidin-5-yl-1H-pyrazolo[3,4-c]pyridine is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H10F2N8S
assistant