Calculation: (2**2+1,2**4+1,2**8+1)
计算：(2**2+1,2**4+1,2**8+1)
<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">2 * 2 * 2 * 2</gadget>
<output>16</output>

<gadget id="calculator">16 + 1</gadget>
<output>17</output>

<gadget id="calculator">2 * 2 * 2 * 2 * 2 * 2 * 2 * 2</gadget>
<output>256</output>

<gadget id="calculator">256 + 1</gadget>
<output>257</output>

<gadget id="calculator">5 * 17 * 257</gadget>
<output>21_845</output>

<result>21_845</result>