A 32-meter long iron wire is folded in half three times, what is the length of each section?
一条长32米的铁丝，对折3次后，每段长多少米．
<gadget id="calculator">2 ** 3</gadget>
<output>8</output>

<gadget id="calculator">32 / 8</gadget>
<output>4</output>

<result>4</result>