A company puts colorful flags on one side of the road, one at an interval of 5 meters, and a total of 8 flags are planted from the starting point to the end point. How long is this road in meters?
某公司在道路的一侧插彩旗，每隔5米插一面，从起点到终点共插了8面，这条道路长多少米？
<gadget id="calculator">8 - 1</gadget>
<output>7</output>

<gadget id="calculator">7 * 5</gadget>
<output>35</output>

<result>35</result>