If a cuboid has a surface area of 50 square centimeters and its upper and lower sides are square, if it can be cut into two cubes of equal volume, how much square centimeters will the surface area increase?
一个长方体表面积为50平方厘米，上、下两个面为正方形，如果正好可以截成两个体积相等的正方体，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">50 / 10</gadget>
<output>5</output>

<gadget id="calculator">5 * 2</gadget>
<output>10</output>

<result>10</result>