For a cuboid, if the length is increased by 2 cm, the volume will increase by 40 cubic centimeters; if the width is increased by 3 cm, the volume will increase by 90 cubic centimeters; if the height is increased by 4 cm, the volume will increase by 96 cubic centimeters. Find the surface area of the original cuboid.
一个长方体，如果长增加2厘米，则体积增加40立方厘米；如果宽增加3厘米，则体积增加90立方厘米；如果高增加4厘米，则体积增加96立方厘米．求原长方体的表面积．
<gadget id="calculator">96 / 4</gadget>
<output>24</output>

<gadget id="calculator">90 / 3</gadget>
<output>30</output>

<gadget id="calculator">24 + 30 + 20</gadget>
<output>74</output>

<gadget id="calculator">74 * 2</gadget>
<output>148</output>

<result>148</result>