You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-chloro-3-fluoro-N-[(R)-(2-methyl-2-azabicyclo[2.2.2]octan-1-yl)-phenylmethyl]benzamide The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H24ClFN2O
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