88888*99999+11111*99999=how much.
88888*99999+11111*99999=多少．
<gadget id="calculator">88_888 * 99_999</gadget>
<output>8_888_711_112</output>

<gadget id="calculator">11_111 * 99_999</gadget>
<output>1_111_088_889</output>

<gadget id="calculator">8_888_711_112 + 1_111_088_889</gadget>
<output>9_999_800_001</output>

<result>9_999_800_001</result>