A piece of paper is folded in half once to get 2 layers, folded in half twice to get 4 layers, and folded in half five times to get how many layers.
一张纸对折一次是2层，对折二次是4层，对折五次是多少层．
<gadget id="calculator">2 ** 5</gadget>
<output>32</output>

<result>32</result>