(((2+1,2**2+1,2**4+1,2**8+1,2**6+1))/(2**2-1))=how much.
(((2+1,2**2+1,2**4+1,2**8+1,2**6+1))/(2**2-1))=多少．
<gadget id="calculator">2 ** 2</gadget>
<output>4</output>

<gadget id="calculator">4 - 1</gadget>
<output>3</output>

<gadget id="calculator">3 / 3</gadget>
<output>1</output>

<result>1</result>