Calculate 3+3**2+3**3+3**4+3**5+3**6.
计算3+3**2+3**3+3**4+3**5+3**6．
<gadget id="calculator">3 ** 2</gadget>
<output>9</output>

<gadget id="calculator">3 ** 3</gadget>
<output>27</output>

<gadget id="calculator">3 ** 4</gadget>
<output>81</output>

<gadget id="calculator">3 ** 5</gadget>
<output>243</output>

<gadget id="calculator">3 ** 6</gadget>
<output>729</output>

<gadget id="calculator">3 + 9 + 27 + 81 + 243 + 729</gadget>
<output>1_092</output>

<result>1_092</result>