Cc1cc2c(c(C(=O)NCC(=O)N[C@@H](C)C(=O)OCc3ccccc3)c1)Oc1c(cc(C)cc1C(=O)NCC(=O)N[C@@H](C)C(=O)OCc1ccccc1)S2
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?