C=C(C)[C@H]1CC[C@]2(C(=O)O)CC[C@]3(C)[C@@H](CC[C@@H]4[C@]3(C)CC[C@H]3C(C)(C)[C@H](O)CC[C@]43C)[C@H]12
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?