CC(=O)OC1CC[C@]2(C)C(CC[C@@]3(C)C2C(=O)C=C2C4C(C)C(C)CC[C@@]4(C(=O)O)CCC23C)C1(C)C
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?