You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-[(3R,3aS,9bS)-9b-(4-fluorophenyl)sulfonyl-1-formyl-7-(1,1,1,2,3,3,3-heptafluoropropan-2-yl)-1,2,3,3a,4,5-hexahydrocyclopenta[a]naphthalen-3-yl]-2-(3-hydroxy-1,1-dioxothiolan-3-yl)acetamide is the IUPAC name of a molecule. Please give its molecular formula.
user
C29H27F8NO7S2
assistant