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Here is a math problem: How many seats does this bus have at least?
There is a bus stop * * * 15, including the starting point and the end point. If there is a bus, there happens to be a passenger at every station except the terminal. How many seats should this bus have in order to make every passenger have a seat?

There are 56 passengers. Therefore, this bus has at least 56 seats.

At least the number of seats is the maximum number of passengers, and the total number of passengers is:

Starting point: 14

1: 14+ 13- 1=26

2:26+ 12-2=36

3:36+ 1 1-3=44

4:44+ 10-4=50

5:50+9-5=54

6:54+8-6=56

7:56+7-7=56

8:56+6-8=54

…………

So there must be at least 56 seats.