Find the SPE of the variant of the two-period sequential bargaining game in which player is payoff when she accepts the proposal (y₁, y₂) in period 2 is y_i c_i , where 0 < c_i < 1 (rather than _iy_i), and her payoff to any terminal history that ends in rejection is c_i (rather than 0), for i = 1, 2. Note that payoffs can be negative, but a proposal must still be a pair of non-negative numbers.