Find the sum of (1**2+2**2+3**2+...+9**2).
求(1**2+2**2+3**2+…+9**2)的总和．
<gadget id="calculator">9 + 1</gadget>
<output>10</output>

<gadget id="calculator">2 * 9</gadget>
<output>18</output>

<gadget id="calculator">18 + 1</gadget>
<output>19</output>

<gadget id="calculator">19 / 6</gadget>
<output>19/6 = around 3.166667</output>

<gadget id="calculator">9 * 10 * (19/6)</gadget>
<output>285</output>

<result>285</result>