Fold a piece of rectangular paper in half 3 times, divide it into equal parts, 5 parts are the rectangle ((())/(())).
把一张长方形纸对折3次，平均分成多少份，5份是这个长方形的((())/(()))．
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<result>8</result>