Fold a rope in half twice, then cut it in the middle. How many pieces of rope are there after cutting?
把一根绳子对折2次，然后从中间剪开．剪开后的绳子共有几段？
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<result>5</result>