A piece of cardboard is 0.1 cm thick, fold it in half 5 times, what is the thickness in cm now?
一张硬纸板厚0.1厘米，将它对折5次，现在厚多少厘米．
<gadget id="calculator">2 * 2 * 2 * 2 * 2 * 0.1</gadget>
<output>3.2</output>

<result>3.2</result>