Calculation: 7999999+799999+79999+7999+799+79=how much.
计算：7999999+799999+79999+7999+799+79=多少．
<gadget id="calculator">7_999_999 + 799_999 + 79_999 + 7_999 + 799 + 79</gadget>
<output>8_888_874</output>

<result>8_888_874</result>