If the cuboid is 16 decimeters long and 6 decimeters high, cut it horizontally into three small cuboids and increase the surface area by 192 square decimeters. What is the surface area of the original cuboid?
长方体长16分米，高6分米，沿着水平方向横切成三个小长方体，表面积增加192平方分米，原来长方体的表面积是多少．
<gadget id="calculator">192 / 4 / 16</gadget>
<output>3</output>

<gadget id="calculator">16 * 3</gadget>
<output>48</output>

<gadget id="calculator">16 * 6</gadget>
<output>96</output>

<gadget id="calculator">3 * 6</gadget>
<output>18</output>

<gadget id="calculator">48 + 96 + 18</gadget>
<output>162</output>

<gadget id="calculator">162 * 2</gadget>
<output>324</output>

<result>324</result>