You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4-(3,4,4a,5,6,7,8,8a-octahydro-1H-isoquinolin-2-yl)-2-methyl-2-(methylamino)pentanenitrile into its molecular formula.
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C16H29N3
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