Cut a piece of 16cm*32cm paper in half, and then cut one of them in half...continue to cut like this until you get a piece of 1cm*2cm paper, then how many times do you need to cut in total?
把一张16cm*32cm的纸裁去一半，再将其中一张裁去一半…继续这样裁下去，直到得到一张lcm*2cm的纸为止，那么一共需裁多少次．
<gadget id="calculator">4 + 4</gadget>
<output>8</output>

<result>8</result>