You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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For the molecule named 6-fluoro-1-(4-fluorophenyl)-7-[3-[(2-methylphenyl)methylideneamino]pyrrolidin-1-yl]-4-oxoquinoline-3-carboxylic acid by IUPAC nomenclature, provide its molecular formula.
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C28H23F2N3O3
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