If the lengths (unit cm) of the three edges of a cuboid are the smallest composite number, the smallest prime number and the largest prime number within 10, what is its surface area?
一个长方体三条棱的长度(单位cm)分别是最小的合数，最小的质数和10以内最大的质数，它的表面积是多少．
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">4 * 7</gadget>
<output>28</output>

<gadget id="calculator">2 * 7</gadget>
<output>14</output>

<gadget id="calculator">8 + 28 + 14</gadget>
<output>50</output>

<gadget id="calculator">50 * 2</gadget>
<output>100</output>

<result>100</result>