Calculation: 20182018*1998-19981998*2018.
计算：20182018*1998-19981998*2018．
<gadget id="calculator">20_182_018 * 1_998</gadget>
<output>40_323_671_964</output>

<gadget id="calculator">19_981_998 * 2_018</gadget>
<output>40_323_671_964</output>

<gadget id="calculator">40_323_671_964 - 40_323_671_964</gadget>
<output>0</output>

<result>0</result>