There is a box of 30 to 40 oranges, 2 and 2 are 1 more than 5, 5 and 5 are 1 more, and 3 and 3 are also 1 more. How many oranges are there in this box?
有一箱子橘子在30～40个之间，2个2个地数多1个，5个5个地数多1个，3个3个地数也多1个，这箱橘子有多少个？
<gadget id="calculator">2 * 5 * 3</gadget>
<output>30</output>

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

<result>31</result>