A*66+B*66-66=6600, A+B=how much.
A*66+B*66-66=6600，A+B=多少．
<gadget id="calculator">6_600 + 66</gadget>
<output>6_666</output>

<gadget id="calculator">6_666 / 66</gadget>
<output>101</output>

<result>101</result>