After a 4-meter-long cuboid is cut from the middle into two cuboids, the surface area increases by 34 square centimeters. What is the volume of the original cuboid in cubic centimeters?
把一根4米长的长方体木料从中间截断成两个长方体后，表面积增加了34平方厘米，原长方体木料的体积是多少立方厘米．
<gadget id="calculator">34 / 2</gadget>
<output>17</output>

<gadget id="calculator">4 * 100</gadget>
<output>400</output>

<gadget id="calculator">17 * 400</gadget>
<output>6_800</output>

<result>6_800</result>