cuboid of wood with a length of 1 meter, a width of 8 cm, and a height of 5 cm is sawed into two sections with a length of 50 cm, and the surface area is increased by how many square centimeters compared to the original.
一个长1米、宽8厘米、高5厘米的长方体木料，锯成长度都是50厘米的两段，表面积比原来增加多少平方厘米．
<gadget id="calculator">8 * 5 * 2</gadget>
<output>80</output>

<result>80</result>