CC(=O)c1cccc(NC(=O)N2CCC(NC(=O)C34CC5CC(CC(C5)C3)C4)CC2)c1
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?