If a cube with sides 4 cm long is divided into two cuboids, what is the increase in surface area in square centimetres?
把一个棱长4厘米的正方体分割成两个长方体，表面积增加了多少平方厘米．
<gadget id="calculator">4 ** 2</gadget>
<output>16</output>

<gadget id="calculator">16 * 2</gadget>
<output>32</output>

<result>32</result>