A cuboid becomes a cube if its height increases by 2 centimeters, and its surface area increases by 48 square centimeters. What is the surface area of the original cuboid in square centimeters?
一个长方体，如果高增加2厘米，就变成了一个正方体，这时表面积比原来增加了48平方厘米．原长方体的表面积是多少平方厘米．
<gadget id="calculator">48 / 4 / 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 6</gadget>
<output>36</output>

<gadget id="calculator">6 - 2</gadget>
<output>4</output>

<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">36 + 24 + 24</gadget>
<output>84</output>

<gadget id="calculator">84 * 2</gadget>
<output>168</output>

<result>168</result>