You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
N-(4-cyclohexa-2,4-dien-1-yl-6-methylcyclohex-2-en-1-yl)-6-methyl-N-[4-[4-(7-phenyl-3a,4-dihydrobenzo[a]phenalen-7-yl)cyclohexa-1,5-dien-1-yl]phenyl]-1,2,3,5a,6,7,9a,9b-octahydrodibenzothiophen-3-amine The above is the IUPAC name of a molecule. Write its molecular formula.
user
C61H61NS
assistant