Cut a cuboid whose length, width and height are 5 cm, 4 cm and 3 cm respectively into two smaller cuboids, what is the maximum increase in the surface area in square centimeters
把一个长、宽、高分别是5厘米、4厘米、3厘米的长方体截成两个小长方体，表面积最多增加多少平方厘米
<gadget id="calculator">4 * 5 * 2</gadget>
<output>40</output>

<result>40</result>