The length of a basketball court is 28 meters and the width is 12 meters less than the length. What is the circumference in meters?
一个篮球场的长是28米，宽比长少12米，周长是多少米．
<gadget id="calculator">28 - 12</gadget>
<output>16</output>

<gadget id="calculator">16 + 28</gadget>
<output>44</output>

<gadget id="calculator">44 * 2</gadget>
<output>88</output>

<result>88</result>