最优消费选择

def solve(____):
    pv_income = income_1 + income_2 / (____ + interest_rate)
    c1 = pv_income / (____ + beta)
    c2 = beta * (____ + interest_rate) * c1
    savings = income_1 - c1
    return {"____": round(____), "____": round(____), "____": round(____)}