COc1c2c(cc3oc(CO[C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)cc(=O)c13)O[C@H](C(C)(C)O)C2
Heavy atom refers to any atom that is not hydrogen. The heavy atoms in molecules are carbon, oxygen, nitrogen, and sulfur. How many heavy atoms are in the molecule?