If the width and height of a cuboid are both 5 cm, if the length is increased by 8 cm, how many square centimeters will its surface area increase?
一个长方体的宽和高都是5厘米，如果长增加8厘米，那么它的表面积增加多少平方厘米．
<gadget id="calculator">5 + 5</gadget>
<output>10</output>

<gadget id="calculator">10 * 2 * 8</gadget>
<output>160</output>

<result>160</result>