123455+234566+345677+456788+567899=how many.
123455+234566+345677+456788+567899=多少．
<gadget id="calculator">123_455 + 234_566 + 345_677 + 456_788 + 567_899</gadget>
<output>1_728_385</output>

<result>1_728_385</result>