You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(1,2,3,4,4a,5,6,7,8,8a-decahydronaphthalen-2-yl)-N',N'-diethylpropane-1,3-diamine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C17H34N2
assistant