You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
4-chloroheptacyclo[12.10.1.12,9.03,8.018,25.019,24.013,26]hexacosa-1,3(8),4,6,9,11,13(26),14,16,18(25),19,21,23-tridecaene is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H13Cl
assistant