Calculation: 200872*201011-200871*201012.
计算：200872*201011-200871*201012．
<gadget id="calculator">200_872 * 201_011</gadget>
<output>40_377_481_592</output>

<gadget id="calculator">200_871 * 201_012</gadget>
<output>40_377_481_452</output>

<gadget id="calculator">40_377_481_592 - 40_377_481_452</gadget>
<output>140</output>

<result>140</result>