A cuboid block is just divided into two identical cubes, and the surface area is increased by 40cm**2 compared to the original one. What is the surface area of the original cuboid in cm**2?
一个长方体木块正好分成两个同样的正方体，表面积比原来增加了40cm**2，原长方体表面积是多少cm**2．
<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">20 * 6 * 2</gadget>
<output>240</output>

<gadget id="calculator">240 - 40</gadget>
<output>200</output>

<result>200</result>