When a number is divided by 8, the quotient and remainder are both 7. What is this number?
一个数除以8，商和余数都是7，这个数是多少
<gadget id="calculator">8 * 7</gadget>
<output>56</output>

<gadget id="calculator">56 + 7</gadget>
<output>63</output>

<result>63</result>