□/7=8…△, □The maximum amount that can be filled
□/7=8…△，□最大可填多少
<gadget id="calculator">8 * 7</gadget>
<output>56</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">56 + 6</gadget>
<output>62</output>

<result>62</result>