A cuboid has a surface area of 80 square centimeters, and the upper and lower sides are squares. If it can be cut into two cubes of equal volume, how many square centimeters will the surface area increase?
一个长方体表面积为80平方厘米，上、下两个面为正方形，如果正好可以截成两个相等体积的正方体，则表面积增加多少平方厘米．
<gadget id="calculator">4 * 2</gadget>
<output>8</output>

<gadget id="calculator">8 + 2</gadget>
<output>10</output>

<gadget id="calculator">80 / 10</gadget>
<output>8</output>

<gadget id="calculator">8 * 2</gadget>
<output>16</output>

<result>16</result>