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 1-benzoyl-2-(4-chlorophenyl)-7-fluorospiro[2,3a-dihydro-1H-pyrrolo[1,2-a]quinoline-3,2'-indene]-1',3'-dione into molecular formula.
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C33H21ClFNO3
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