Calculation: 765*963963-765765*963=how much.
计算：765*963963-765765*963=多少．
<gadget id="calculator">765 * 963_963</gadget>
<output>737_431_695</output>

<gadget id="calculator">765_765 * 963</gadget>
<output>737_431_695</output>

<gadget id="calculator">737_431_695 - 737_431_695</gadget>
<output>0</output>

<result>0</result>