You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule 1-(2,4-difluorophenyl)sulfonyl-N-(4-methyl-1,3-benzothiazol-2-yl)piperidine-4-carboxamide into molecular formula.
user
C20H19F2N3O3S2
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