There is a pile of candy, between 80 and 100 pieces, no matter if it is distributed to 8 people or 10 people, there will be 7 more pieces. How many pieces are there in this pile of candy?
有一堆糖块，在80～100块之间，不论分给8个人还是10个人，都多7块．这堆糖有多少块．
<gadget id="calculator">2 * 2 * 2 * 5</gadget>
<output>40</output>

<gadget id="calculator">40 * 2</gadget>
<output>80</output>

<gadget id="calculator">80 + 7</gadget>
<output>87</output>

<result>87</result>