You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
For the molecule named 2,14-dideuteriotetracyclo[8.2.2.02,9.03,8]tetradeca-3(8),13-diene-11,11,12,12-tetracarbonitrile by IUPAC nomenclature, provide its molecular formula.
user
C18H14N4
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