You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named (3aS,3bS,9aR,9bR,11aS)-N-(2-adamantyl)-2,6,9a,11a-tetramethyl-7-oxo-2,3,3a,3b,4,5,5a,9b,10,11-decahydro-1H-indeno[5,4-f]quinoline-1-carboxamide by IUPAC nomenclature, provide its molecular formula.
user
C31H46N2O2
assistant