Suppose you buy one SPX put option with a strike of 1,420 and write one SPX put option with a strike of 1,450. What are the "per share" (i.e., per unit) payoffs at maturity to this position for S&P 500 Index levels of 1300, 1350, 1400, 1450, and 1500? (Negative answers should be indicated by a minus sign. Leave no cells blank - be certain to enter "O" wherever required.) Long call payoff Short call payoff Total payoff Index level 1300 1350 1400 llll DDDDD Hill 1450 1500