You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name (3aS,7aR)-N-[(4R)-8-fluoro-3,4-dihydro-2H-chromen-4-yl]-1,2,3,4,5,6,7,7a-octahydroisoindole-3a-carboxamide;hydrochloride into its molecular formula.
user
C18H24ClFN2O2
assistant