You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
2-(4,4-diphenyl-3,5-dioxatricyclo[5.2.1.02,6]decan-8-yl)-1,1,2,2-tetrafluoroethanesulfonic acid The above is the IUPAC name of a molecule. Write its molecular formula.
user
C22H20F4O5S
assistant