/=15…7, what is the minimum dividend
/=15…7，被除数最小是多少
<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<gadget id="calculator">15 * 8</gadget>
<output>120</output>

<gadget id="calculator">120 + 7</gadget>
<output>127</output>

<result>127</result>