Using [N-]=[N+]=[N-], ClC(Cl)=C(Cl)c1cc(Br)cc(CBr)c1 to produce [N-]=[N+]=NCc1cc(Br)cc(C(Cl)=C(Cl)Cl)c1, please predict the agent for this reaction in SMILES notation in \boxed{$SMILES1, SMILES2, ...} format.