For some sugar, the average distribution to 4 people will add 3 yuan. The average distribution to 5 people is still 3 yuan more. At least how many pieces of candy.
一些糖，平均分给4个人会多3块．平均分给5个人，还是多3块．至少有多少块糖．
<gadget id="calculator">4 * 5</gadget>
<output>20</output>

<gadget id="calculator">20 + 3</gadget>
<output>23</output>

<result>23</result>