c1ccc(C(/C(=N/c2ccc(Cc3ccc(/N=C(\C(c4ccccc4)c4ccccc4)N4CC4)cc3)cc2)N2CC2)c2ccccc2)cc1
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?