Using ClI, Cc1cc(-c2cc(C(F)(F)F)n3nccc3n2)ccc1C(F)(F)F to produce Cc1cc(-c2cc(C(F)(F)F)n3ncc(I)c3n2)ccc1C(F)(F)F, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.