jacket is 200 yuan, a pair of trousers is 27 yuan cheaper than the jacket, how much is a pair of trousers.
一件上衣200元，一条裤子比上衣便宜27元，一条裤子多少钱．
<gadget id="calculator">200 - 27</gadget>
<output>173</output>

<result>173</result>