You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name methyl N-[4-[(3-chloro-4-fluorophenyl)carbamoyl]-7-fluoro-2,2-dimethyl-1,3-dihydroinden-1-yl]carbamate into its molecular formula.
user
C20H19ClF2N2O3
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