There are some candies, and they are distributed to several children on average. Each child is always divided into 5 pieces, and there are 4 left in the end. How many of these candies are there at least?
有一些糖果，平均分给几个小朋友，每个小朋友总是分了5颗，最后还剩下4颗，这些糖果至少有多少颗？
<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">5 * 5</gadget>
<output>25</output>

<gadget id="calculator">25 + 4</gadget>
<output>29</output>

<result>29</result>