There are 49 willow trees on one side of the road from the beginning to the end, and the distance between two adjacent willow trees is 50 meters. How many meters is this road in total?
马路的一侧从头到尾共有49棵柳树，每相邻两棵柳树之间的距离是50米．这条马路一共长多少米？
<gadget id="calculator">49 - 1</gadget>
<output>48</output>

<gadget id="calculator">48 * 50</gadget>
<output>2_400</output>

<result>2_400</result>