Using CCC[C@H]1CC[C@H](C=C[C@H]2CC[C@H](C(F)(F)F)CC2)CC1 to produce CCC[C@H]1CC[C@H](CC[C@H]2CC[C@H](C(F)(F)F)CC2)CC1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.