You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(1S,5R,9S,13R,14R)-14-hydroxy-5,9,14-trimethyltetracyclo[11.2.1.01,10.04,9]hexadecane-5-carboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C20H32O3
assistant