The volume of a cuboid is 25 cubic centimeters. If its length and width are doubled respectively, and its height remains the same, what is the volume of the cuboid now?
一个长方体的体积是25立方厘米，如果它的长和宽分别扩大2倍，高不变，那么现在这个长方体的体积是多少立方厘米．
<gadget id="calculator">2 * 2</gadget>
<output>4</output>

<gadget id="calculator">25 * 4</gadget>
<output>100</output>

<result>100</result>