Cut a piece of wood with a length of 12cm into two small cuboids, and the surface area increases by 6cm**2. What is the original volume of this piece of wood in cm**3?
把一根长12cm的木料横截成两个小长方体，表面积增加了6cm**2，原来这根木料的体积是多少cm**3．
<gadget id="calculator">6 / 2</gadget>
<output>3</output>

<gadget id="calculator">3 * 12</gadget>
<output>36</output>

<result>36</result>