2003*20042004-2004*20032003.
2003*20042004-2004*20032003．
<gadget id="calculator">2_003 * 20_042_004</gadget>
<output>40_144_134_012</output>

<gadget id="calculator">2_004 * 20_032_003</gadget>
<output>40_144_134_012</output>

<gadget id="calculator">40_144_134_012 - 40_144_134_012</gadget>
<output>0</output>

<result>0</result>