You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3,5,13,15-tetramethyl-2,6,12,16-tetrazatricyclo[15.3.1.17,11]docosa-1(21),2,5,7(22),8,10,12,15,17,19-decaene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H24N4
assistant