You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
1,10-dibromo-7,7,8,8,9,10,10-heptachloro-3,3,4,4,5,6,6-heptafluorodec-1-ene The above is the IUPAC name of a molecule. Write its molecular formula.
user
C10H4Br2Cl7F7
assistant