C=C1C(=O)[C@@]23[C@@H](C[C@H](O)[C@@H]1[C@H]2O)[C@@]1(C)[C@@H](O)CCC(C)(C)[C@H]1C[C@H]3O
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?