The sum of the sides of a cuboid is 72 cm, its length is 9 cm, and its width is 6 cm. What is its surface area in square centimeters?
一个长方体的棱长和是72厘米，它的长是9厘米，宽6厘米，它的表面积是多少平方厘米？
<gadget id="calculator">9 * 6</gadget>
<output>54</output>

<gadget id="calculator">72 / 4</gadget>
<output>18</output>

<gadget id="calculator">9 + 6</gadget>
<output>15</output>

<gadget id="calculator">18 - 15</gadget>
<output>3</output>

<gadget id="calculator">9 * 3</gadget>
<output>27</output>

<gadget id="calculator">6 * 3</gadget>
<output>18</output>

<gadget id="calculator">54 + 27 + 18</gadget>
<output>99</output>

<gadget id="calculator">99 * 2</gadget>
<output>198</output>

<result>198</result>