COc1ccc2[nH]c3c(c2c1)CCN1C(=O)C(CC(=O)NCC24C[C@H]5C[C@@H](C2)C[C@@H](C4)C5)C[C@H](C(=O)N(C(C)C)C(C)C)[C@@]31C
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?