You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 4-[[1-[(3S)-3-(3,5-difluorocyclohexyl)-3,4-dihydropyrazole-2-carbonyl]azetidin-3-yl]methyl]pyridine-2-carbonitrile into molecular formula.
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C20H23F2N5O
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