There is a pentagonal flower bed in the school. The students put 6 pots of flowers on each side of it (one pot at each of the five vertices), and the interval is 1 meter. What is the perimeter of the pentagonal flower bed in meters?
学校有一个五边形花坛，同学们在它的每边都摆上6盆花(五个顶点各有一盆)，间隔都是1米，这个五边形花坛的周长是多少米？
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">5 * 5 * 1</gadget>
<output>25</output>

<result>25</result>