You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Translate the chemical IUPAC name 4,7-dithia-10,12-diazatricyclo[6.4.0.02,6]dodeca-1(8),2,5,11-tetraen-9-one into its molecular formula.
user
C8H4N2OS2
assistant