Economics question

Exercise 8.6. Suppose that the alternating-offer game of Section 8.7 is played with feasible set F = {(xux2)|x1 + x2 5 v12}, disagreement payoffs (01,02), and termination probabilities (p.432), where v12 > v1 + '02. As a function of these parameters (vlg, 11., '02, pl, 132), what is the general formula for the offer that player 1 would always make and the offer that player 2 would always make in the subgame-perfect equilibrium