There are 450 seats in the movie theater, among which there are 175 seats in seat A, and the rest are seats B. Each ticket for seat A is 18 yuan, and each ticket for seat B is 12 yuan. If all are sold out, how much is the total income?
电影院共有450个座位，其中甲座有175个，其余是乙座位，甲座位票每张18元，乙座位票每张12元，如果全部买完，一共收入多少元？
<gadget id="calculator">450 - 175</gadget>
<output>275</output>

<gadget id="calculator">275 * 12</gadget>
<output>3_300</output>

<gadget id="calculator">175 * 18</gadget>
<output>3_150</output>

<gadget id="calculator">3_300 + 3_150</gadget>
<output>6_450</output>

<result>6_450</result>