The school chorus team bought 23 new sets of clothing, each top was 84 yuan, and each skirt was 66 yuan. How much more did the school buy for the tops than for the skirts?
学校合唱队新购买了23套服装，每件上衣84元，每条裙子66元，学校买的上衣比裙子多多少元？
<gadget id="calculator">84 - 66</gadget>
<output>18</output>

<gadget id="calculator">18 * 23</gadget>
<output>414</output>

<result>414</result>