You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Convert the IUPAC name of a molecule 2-hydroxy-2-methyl-6-methylidene-1'-propan-2-ylspiro[8-oxatetracyclo[9.2.2.01,10.05,9]pentadec-12-ene-15,4'-bicyclo[3.1.0]hexane]-3',7-dione into molecular formula.
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C24H30O4
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