You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1S,3R)-3-acetyl-N-[(2-chloro-5-fluorophenyl)methylsulfonyl]-2,2-dimethylcyclobutane-1-carboxamide into molecular formula.
user
C16H19ClFNO4S
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