There are a bunch of apples, if they are distributed to 4 children on average, 2 will be left; if they are distributed to 5 children on average, 2 will be left. How many apples are there at least in this pile?
有一堆苹果，如果平均分给4个小朋友，剩下2个；如果平均分给5个小朋友，也剩下2个．这堆苹果至少有多少个？
<gadget id="calculator">4 * 5</gadget>
<output>20</output>

<gadget id="calculator">20 + 2</gadget>
<output>22</output>

<result>22</result>