There are several passengers on the No. 62 bus. After arriving at station A, 13 people go down and 11 people go up. After arriving at station B, 5 people go down and go up 9 people. At this time, there are 28 passengers in the bus. How many passengers are there in the original bus?
62路公共汽车有若干名乘客，到A站后下去13人，上来11人，到B站后下去5人，上来9人，这时车内有乘客28人，原来该车有乘客多少人？
<gadget id="calculator">28 - 11 - 9</gadget>
<output>8</output>

<gadget id="calculator">13 + 5 + 8</gadget>
<output>26</output>

<result>26</result>