CC(C)(C)C(=O)Nc1ccc(C(=O)Nc2cc(NC(=O)c3ccc(NC(=O)C(C)(C)C)cc3)cc(C(=O)O)c2)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?