You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(6aR,10aR)-4,6,6a,7,8,9,10,10a-octahydroindolo[4,3-fg]quinoline-5-thiol The above is the IUPAC name of a molecule. Write its molecular formula.
user
C14H16N2S
assistant