You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Convert the IUPAC name of a molecule (1R,5R,8S,12S)-3-iodopentacyclo[10.2.1.15,8.02,11.04,9]hexadeca-2(11),3,9-triene into molecular formula.
user
C16H17I
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