When □/□=10…7, what is the minimum dividend.
当□/□=10…7时，被除数最小是多少．
<gadget id="calculator">7 + 1</gadget>
<output>8</output>

<gadget id="calculator">10 * 8</gadget>
<output>80</output>

<gadget id="calculator">80 + 7</gadget>
<output>87</output>

<result>87</result>