There is a cuboid with a square base, a height of 12 cm, and a square when its sides are unfolded. What is the volume of this cuboid in cubic centimeters?
有一个底面是正方形的长方体，高12厘米，侧面展开后是一个正方形，这个长方体的体积是多少立方厘米．
<gadget id="calculator">12 / 4</gadget>
<output>3</output>

<gadget id="calculator">3 * 3 * 12</gadget>
<output>108</output>

<result>108</result>