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 (4-fluorocyclohexyl)-[1-prop-2-ynyl-4-[3-(trifluoromethyl)cyclohexyl]pyrazolidin-3-yl]methanone into molecular formula.
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C20H28F4N2O
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