Cc1ccc(-c2cc(C(=O)N3N=C(C(F)F)CC3(O)C(F)F)c3ccccc3n2)cc1C
A rotatable bond is defined as any single non-ring bond, attached to a non-terminal, non-hydrogen atom. Amide C-N bonds are not counted because of their high barrier to rotation.  How many rotatable bonds does the molecule have?