You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(2S)-3-cyclohexyl-N-[2-(5-fluoro-2,3-dihydro-1H-indol-3-yl)ethyl]-2-[[4-(trifluoromethyl)phenyl]sulfonylamino]propanamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H31F4N3O3S
assistant