You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
[(3S,5S,8R,9S,10S,13S,14S)-10,13-dimethyl-17-oxo-1,2,3,4,5,6,7,8,9,11,12,14,15,16-tetradecahydrocyclopenta[a]phenanthren-3-yl] benzoate is the IUPAC name of a molecule. Please give its molecular formula.
user
C26H34O3
assistant