You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
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N-[(Z)-[1-(3-cyano-4,5-dimethylfuran-2-yl)-2,5-dimethylpyrrol-3-yl]methylideneamino]-4-fluorobenzamide The above is the IUPAC name of a molecule. Write its molecular formula.
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C21H19FN4O2
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