The length of a cuboid is 6 cm, exactly twice the width, and three times the height, what is the surface area of the cuboid in square centimeters?
一个长方体的长是6厘米，刚好是宽的2倍，是高的3倍，这个长方体的表面积是多少平方厘米．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

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

<gadget id="calculator">6 / 3</gadget>
<output>2</output>

<gadget id="calculator">6 * 2</gadget>
<output>12</output>

<gadget id="calculator">3 * 2</gadget>
<output>6</output>

<gadget id="calculator">18 + 12 + 6</gadget>
<output>36</output>

<gadget id="calculator">36 * 2</gadget>
<output>72</output>

<result>72</result>