
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
In a city, there are 57 bus routes. It is known that:

1) You can travel from any stop to any other stop without transferring;
2) For any pair of routes, there is exactly one stop where you can transfer from one route to the other;
3) Each route has at least three stops.

How many stops does each of the 57 routes have?

Present the answer in LaTex format: \boxed{Your answer}
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