You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named (4aS,6aR,6aR,6bR,8aR,12aR)-11-isocyano-2,2,6a,6b,9,9,12a-heptamethyl-10,14-dioxo-1,3,4,5,6,6a,7,8,8a,13,14a,14b-dodecahydropicene-4a-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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