You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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Translate the chemical IUPAC name 1-[(2R)-6-fluoro-2-methyl-3,4-dihydro-2H-quinolin-1-yl]-2-(1H-indol-3-yl)ethane-1,2-dione into its molecular formula.
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C20H17FN2O2
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