Divide a number by 9 to get 123, and the remainder is 8. What is the number?
一个数除以9得123，余数是8，这个数是多少．
<gadget id="calculator">123 * 9</gadget>
<output>1_107</output>

<gadget id="calculator">1_107 + 8</gadget>
<output>1_115</output>

<result>1_115</result>