You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 5-(2-fluorophenyl)-N-[4-methyl-5-(4-prop-2-enyl-5-sulfanylidene-1H-1,2,4-triazol-3-yl)-1,3-thiazol-2-yl]furan-2-carboxamide into molecular formula.
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C20H16FN5O2S2
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