Number A/Number B=7...A, when A and B increase by 5 times at the same time, what is the remainder?
甲数/乙数=7…A，当甲数和乙数同时增加5倍时，余数是多少．
<gadget id="calculator">5 + 1</gadget>
<output>6</output>

<result>6</result>