COC1C(O)C(O[C@H]2CC[C@@]3(C)C(CC[C@@H]4[C@@H]3CC[C@]3(C)[C@@H](C(C)OC5OC(CO)C(O)C(O)C5O)CC[C@]43O)C2)OC(C)C1OC1OC(CO)C(O)C(O)C1O
Heavy atom refers to any atom that is not hydrogen. How many heavy atoms do the molecule have?