CC[C@H](C)[C@@H](C(=O)NCCCCCCCCCCC(=O)N1CCN(C(=O)OC(C)(C)C)CC1)n1cc(CCCCN=C(NC(=O)OC(C)(C)C)NC(=O)OC(C)(C)C)nn1
Heavy atom refers to any atom that is not hydrogen. How many heavy atoms do the molecule have?