COc1cc2c(c(O)c1OC)-c1c(cc(OC)c(OC)c1O)[C@@H](OC(=O)c1ccccc1)[C@@](C)(O)[C@@H](C)[C@@H]2OC(C)=O
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?