O=C(O)/C=C/C(=O)Nc1ccc(C2(c3ccc(NC(=O)/C=C/C(=O)O)cc3)c3ccccc3-c3ccccc32)cc1
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?