CC(=O)Nc1ccc2c3c(cc(O)c2c1)N(C(=O)CCCCC(=O)N1CC(CCl)c2c1cc(O)c1cc(NC(C)=O)ccc21)CC3CCl
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?