CN1C(=O)C2(Cc3cn(C45CC67SSC(CO)(C(=O)N6C4Nc4ccccc45)N(C)C7=O)c4ccccc34)SSC1(CO)C(=O)N2C
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?