CCOC(=O)/C=C(\N=P(c1ccccc1)(c1ccccc1)c1ccccc1)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F
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?