If a cuboid with a length of 10cm, a width of 8cm and a height of 5cm is cut into two identical cuboids, what is the minimum increase in the surface area in cm**2.
一个长为10cm，宽为8cm，高为5cm的长方体，把它截成两块相同的长方体后，表面积最少增加多少cm**2．
<gadget id="calculator">8 * 5 * 2</gadget>
<output>80</output>

<result>80</result>