You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 8-acetyl-6-benzyl-9,13-dimethyl-5,7-dioxapentacyclo[10.8.0.02,9.04,8.013,18]icos-17-en-16-one by IUPAC nomenclature, provide its molecular formula.
user
C29H36O4
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