COC(=O)C1=C[C@@H](C(=O)OC)[C@@H]2C3=C(C(=O)[C@]2(CC(C)C)NC(=O)c2ccccc2)[C@H](C)n2c(=O)n(-c4ccccc4)c(=O)n2[C@@H]3C1
All atoms other than hydrogen are referred to be heavy atoms. How many heavy atoms are there in the molecule?