You are a chemist. Please follow the instructions to convert the structure to the corresponding name.
system
(12S,34S)-11,32-dimethyl-3,18,25,40-tetraoxaundecacyclo[40.2.2.220,23.14,8.113,17.126,30.135,39.07,12.09,14.029,34.031,36]dopentaconta-1(45),4(52),5,7,10,13,15,17(51),20,22,26(48),27,29,32,35,37,39(47),42(46),43,49-icosaene-10,33-dicarboxylic acid is the IUPAC name of a molecule. Please give its molecular formula.
user
C52H40O8
assistant