Calculation: 1+2+3+4+5+…+10000=
计算：1+2+3+4+5+…+10000=
<gadget id="calculator">1 + 10_000</gadget>
<output>10_001</output>

<gadget id="calculator">10_000 / 2</gadget>
<output>5_000</output>

<gadget id="calculator">10_001 * 5_000</gadget>
<output>50_005_000</output>

<result>50_005_000</result>