If 3x+1=16, what is x**2+2 equal to?
如果3x+1=16，那么x**2+2等于多少
<gadget id="calculator">16 - 1</gadget>
<output>15</output>

<gadget id="calculator">15 / 3</gadget>
<output>5</output>

<gadget id="calculator">5 ** 2</gadget>
<output>25</output>

<gadget id="calculator">25 + 2</gadget>
<output>27</output>

<result>27</result>