CO[C@H]1COC(=O)[C@H](C)NC(=O)C/C=C\[C@@H](C)[C@@H](NS(=O)(=O)c2ccc(C)cc2)COC(=O)C/C=C\[C@@H]1C
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?