O=C(O[C@@H]1[C@@H]2O[C@]2(CO)[C@H]2[C@H](OC3OC(CO)C(O)C(O)C3O)OC=C[C@@H]12)c1ccc(O)c(O)c1
How many heavy atoms like carbon, oxygen, nitrogen, sulfur and other non-hydrogen atoms do the molecule contain?