If a cube with side length 20 cm is divided into two identical cuboids, what is the surface area of each cuboid?
把一个棱长为20厘米的正方体分成两个相同的长方体，每个长方体的表面积是多少．
<gadget id="calculator">20 / 2</gadget>
<output>10</output>

<gadget id="calculator">10 * 20 * 4</gadget>
<output>800</output>

<gadget id="calculator">20 * 20 * 2</gadget>
<output>800</output>

<gadget id="calculator">800 + 800</gadget>
<output>1_600</output>

<result>1_600</result>