You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3,4-difluoro-2-(2-fluoro-4-iodoanilino)-5-[[3-fluoro-2-(oxetan-3-ylmethylsulfamoylamino)pyridin-4-yl]methyl]benzamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C23H20F4IN5O4S
assistant