C[C@@H](CO)N1C[C@@H](C)[C@@H](CN(C)Cc2ccc(Cl)c(Cl)c2)Oc2ccc(NC(=O)Nc3ccc(F)cc3)cc2CC1=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?