You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1-[10-(5-ethoxy-1-methylindole-2-carbonyl)-2,10-diazabicyclo[10.4.0]hexadeca-1(16),12,14-trien-2-yl]ethanone is the IUPAC name of a molecule. Please give its molecular formula.
user
C28H35N3O3
assistant