□/8=5…△, when △ is the largest, what should be the value of □.
□/8=5…△，当△最大时，□应该是多少．
<gadget id="calculator">5 * 8</gadget>
<output>40</output>

<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">40 + 7</gadget>
<output>47</output>

<result>47</result>