Alpha Gear is a fitness apparel company. One of their best selling products are their joggers. The company sells joggers under a block pricing scheme that charges $18 per pair of joggers if the customer buys up to 10 joggers and $13 if they buy 11 to 20 joggers. The demand curve is Q = 1500 - 20P, and the marginal cost of making a pair of joggers is $10. What are the profits for Alpha Gear under this pricing scheme?