If the height of a cuboid is cut off by 2 decimeters, the surface area will be reduced by 48 square decimeters, and the remaining part becomes a cube. Find the surface area of the original cuboid.
一个长方体，高截去2分米，表面积就减少了48平方分米，剩下部分成为一个正方体，求原长方体的表面积．
<gadget id="calculator">48 / 4 / 2</gadget>
<output>6</output>

<gadget id="calculator">6 * 6 * 6</gadget>
<output>216</output>

<gadget id="calculator">216 + 48</gadget>
<output>264</output>

<result>264</result>