A pile of apples, 5 apples with 5 lands, 1 left, 6 apples with 6 lands, 1 left, at least how many apples are there in this pile.
一堆苹果，5个5个地数，还剩1个，6个6个地数，也剩1个，这堆苹果至少有多少个．
<gadget id="calculator">5 * 6</gadget>
<output>30</output>

<gadget id="calculator">30 + 1</gadget>
<output>31</output>

<result>31</result>