44444*33334+33333*88888.
44444*33334+33333*88888．
<gadget id="calculator">44_444 * 33_334</gadget>
<output>1_481_496_296</output>

<gadget id="calculator">33_333 * 88_888</gadget>
<output>2_962_903_704</output>

<gadget id="calculator">1_481_496_296 + 2_962_903_704</gadget>
<output>4_444_400_000</output>

<result>4_444_400_000</result>