89+89+89+89+1+1+1+1+99**2=how much.
89+89+89+89+1+1+1+1+99**2=多少．
<gadget id="calculator">99 ** 2</gadget>
<output>9_801</output>

<gadget id="calculator">89 + 89 + 89 + 89 + 1 + 1 + 1 + 1 + 9_801</gadget>
<output>10_161</output>

<result>10_161</result>