6666*1111+3333*7778=how many.
6666*1111+3333*7778=多少．
<gadget id="calculator">6_666 * 1_111</gadget>
<output>7_405_926</output>

<gadget id="calculator">3_333 * 7_778</gadget>
<output>25_924_074</output>

<gadget id="calculator">7_405_926 + 25_924_074</gadget>
<output>33_330_000</output>

<result>33_330_000</result>