You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (3aR,4R,7S,7aS)-4-methyl-7-[(1S)-1,2,2-trimethylcyclopentyl]-3a,4,7,7a-tetrahydro-2-benzofuran-1,3-dione into molecular formula.
user
C17H24O3
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