The total length of the No. 5 bus route is 12 kilometers, and the distance between two adjacent stations is 1 kilometer. How many stations are there?
5路公共汽车行驶路线全长12千米，相邻两站的距离是1千米．一共有几个车站？
<gadget id="calculator">12 / 1</gadget>
<output>12</output>

<gadget id="calculator">12 + 1</gadget>
<output>13</output>

<result>13</result>