CC(C)[C@H](NC(=O)N1c2ccccc2NC(=O)[C@@H]1C(C)C)C(=O)N[C@@H](Cc1c[nH]c2ccccc12)C(=O)O
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?