O=C1NC[C@H](c2ccccc2)OC(=O)[C@@H](Cc2ccc(F)cc2)CC/C=C/C[C@@H]1CC(=O)N(CCO)Cc1ccccc1
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?