Cut a cuboid into two equal cubes, so that the surface area increases by 160 square centimeters. What is the original surface area of the cuboid?
将一个长方体恰好截成两个相等的正方体，这样表面积就增加160平方厘米，求这个长方体原来的表面积是多少？
<gadget id="calculator">160 / 2</gadget>
<output>80</output>

<gadget id="calculator">80 * 10</gadget>
<output>800</output>

<result>800</result>