○/□=25…24, what is the minimum value of ○.
○/□=25…24，○最小是多少．
<gadget id="calculator">24 + 1</gadget>
<output>25</output>

<gadget id="calculator">25 * 25</gadget>
<output>625</output>

<gadget id="calculator">625 + 24</gadget>
<output>649</output>

<result>649</result>