There are 10 small flags planted on one side of a small road next to the playground. The distance between each two adjacent small flags is 3m, and the two ends are not inserted. How long is this small road?
操场旁边的一条小路一侧插着10面小旗，每相邻两面小旗之间的距离是3m，两端不插，这条小路有多长？
<gadget id="calculator">10 + 1</gadget>
<output>11</output>

<gadget id="calculator">11 * 3</gadget>
<output>33</output>

<result>33</result>