2006*111111111111-1111*200620062006=how many.
2006*111111111111-1111*200620062006=多少．
<gadget id="calculator">2_006 * 111_111_111_111</gadget>
<output>222_888_888_888_666</output>

<gadget id="calculator">1_111 * 200_620_062_006</gadget>
<output>222_888_888_888_666</output>

<gadget id="calculator">222_888_888_888_666 - 222_888_888_888_666</gadget>
<output>0</output>

<result>0</result>