A wire is cut off in half for the first time, and the remaining half is cut off for the second time, leaving 2 meters in the end. How many meters is the wire originally?
一根电线，第一次剪去一半，第二次剪去余下的一半，最后剩下2米，这根电线原来有多少米．
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<result>8</result>