You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
What is the molecular formula of the molecule (1S,4aS,8aS)-5,5,8a-trimethyl-3-oxo-2,4,4a,6,7,8-hexahydro-1H-naphthalene-1-carboxylic acid ?
user
C14H22O3
assistant