A coat is 123 yuan, and the price of a coat is 4 times that. How much does a coat cost more than a top?
一件上衣123元，一件大衣的价钱是它的4倍．一件大衣比一件上衣贵多少元？
<gadget id="calculator">123 * 4</gadget>
<output>492</output>

<gadget id="calculator">492 - 123</gadget>
<output>369</output>

<result>369</result>