COc1ccc(OC)c(C2C(C(=O)Nc3ccc(C)cc3C)=C(C)Nc3c(C(=O)Nc4ccc(F)cc4)cnn32)c1
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?