CC1=C(C2=C(C)C(C(C)C)C3=C(C(=O)C(O)C3O)C2O)C(O)C2=C(C(O)C(O)C2=O)C1C(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?