CC(C)C[C@H]1CN([C@@H](CC(C)C)CN2CCCC2CN2C(=S)NC[C@@H]2Cc2ccc(O)cc2)C(=S)N1CCc1ccccc1
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?