For one style of clothing, you can buy a single jacket for 242 yuan, and a single pair of pants for 158 yuan. If you buy a set and buy more than 30 sets at one time, you can enjoy a half-price discount. It is known that Yongle Group has ordered 45 sets of this style of clothing, how much will it cost in total?
一种款式的服装，单买上衣242元一件，单买裤子158元一条，如果成套购买，且一次性购买超过30套的话，可享受半价优惠．已知永乐集团订购了45套这种款式的服装，一共要用多少元？
<gadget id="calculator">242 + 158</gadget>
<output>400</output>

<gadget id="calculator">400 / 2</gadget>
<output>200</output>

<gadget id="calculator">200 * 45</gadget>
<output>9_000</output>

<result>9_000</result>