A cuboid is 3 decimeters long, 1 decimeter wide, and 2 decimeters high. If it is cut into two cuboids with the largest surface area, how many square decimeters will the sum of the surface areas of the two new cuboids increase compared to the original one?
一个长方体长3分米，宽1分米，高2分米，把它切成表面积最大的两个长方体，这两个新长方体表面积的和比原来增加多少平方分米
<gadget id="calculator">3 * 2 * 2</gadget>
<output>12</output>

<result>12</result>