You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
Provide the molecular formula for the IUPAC named substance [20-(aminomethylimino)-7,17-difluoro-2,12-diazapentacyclo[11.7.0.03,11.04,9.014,19]icosa-1(13),2,4(9),5,7,11,14(19),15,17-nonaen-10-ylidene]cyanamide .
user
C20H10F2N6
assistant