If a cuboid with a length of 12 decimeters, a width of 10 decimeters and a height of 8 decimeters is sawed into two cuboids, the surface area will increase by at least how many square decimeters.
把一个长12分米，宽10分米，高8分米的长方体，锯成两个长方体，表面积至少增加多少平方分米．
<gadget id="calculator">12 * 10 * 2</gadget>
<output>240</output>

<result>240</result>