You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
3,24-dioxa-11,16,30-triazatetracyclo[24.3.1.04,9.018,23]triaconta-1(30),4,6,8,18,20,22,26,28-nonaene-10,17-dione is the IUPAC name of a molecule. Please give its molecular formula.
user
C25H25N3O4
assistant