The cover of the mathematics textbook is 24 meters long and 17 meters wide. What is the circumference of the cover of the math textbook in centimeters?
数学课本封面长24米，宽17米．数学课本封面的周长是多少厘米．
<gadget id="calculator">24 + 17</gadget>
<output>41</output>

<gadget id="calculator">41 * 2</gadget>
<output>82</output>

<result>82</result>