There are some balloons, and the number of balloons is less than 40. If these balloons are evenly distributed to 5 people or 6 people have 1 more, then how many balloons are there?
有一些气球，气球的个数不到40个，如果把这些气球平均分给5个人或6个人都多1个，那么有多少个气球．
<gadget id="calculator">6 * 5</gadget>
<output>30</output>

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

<result>31</result>