COC(=O)[C@@]1(C)[C@H]2C(=O)N(C)C(=O)[C@H]2[C@H]2CN=C(SCc3ccc(Cl)cc3)N21.O=C(O)C(F)(F)F
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?