Calculation: 333*3333+999*8889.
计算：333*3333+999*8889．
<gadget id="calculator">333 * 3_333</gadget>
<output>1_109_889</output>

<gadget id="calculator">999 * 8_889</gadget>
<output>8_880_111</output>

<gadget id="calculator">1_109_889 + 8_880_111</gadget>
<output>9_990_000</output>

<result>9_990_000</result>