If a cube with a surface area of 60 square centimeters is cut into two identical cuboids, how many square centimeters will the surface area increase?
表面积是60平方厘米的正方体，切成两个完全一样的长方体后，表面积增加了多少平方厘米．
<gadget id="calculator">60 / 6</gadget>
<output>10</output>

<gadget id="calculator">10 * 2</gadget>
<output>20</output>

<result>20</result>