The electrician used up half of the total length of a wire for the first time, and used up the remaining half for the second time. At this time, there were still 16 meters left. How long was the wire in meters?
一根电线，电工第一次用去了全长的一半，第二次用去了剩下的一半，这时还剩下16米，这根电线原来长多少米？
<gadget id="calculator">16 * 2 * 2</gadget>
<output>64</output>

<result>64</result>