If a cuboid is cut into three identical cubes, the surface area increases by 40 square centimeters. What is the surface area of the original cuboid?
把一个长方体切成三个一样的正方体，表面积增加了40平方厘米，原来长方体的表面积是多少．
<gadget id="calculator">40 / 4</gadget>
<output>10</output>

<gadget id="calculator">10 * 6 * 3</gadget>
<output>180</output>

<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">180 - 40</gadget>
<output>140</output>

<result>140</result>