The sum of the lengths of the sides is a cuboid of 120 decimeters, the length is 14 decimeters, and the width is 6 decimeters. What is its volume?
棱长之和是120分米的长方体，长14分米，宽6分米，它的体积是多少．
<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<gadget id="calculator">30 - 14 - 6</gadget>
<output>10</output>

<gadget id="calculator">14 * 6 * 10</gadget>
<output>840</output>

<result>840</result>