Simple calculation: 999+999-860-240+134895.
简算：999+999-860-240+134895．
<gadget id="calculator">999 - 860 - 240</gadget>
<output>-101</output>

<gadget id="calculator">999 + (-101) + 134_895</gadget>
<output>135_793</output>

<result>135_793</result>