
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 the diagram, the city's map is shown. Nodes are intersections, and the 35 connecting lines are streets. There are $N$ minibuses traveling along these streets. All minibuses start simultaneously at the intersections and move to neighboring intersections once every minute along the streets. Each minibus travels along a closed non-intersecting route. Multiple minibuses can be present at one intersection, but no more than one minibus can travel on any street at the same time. Find the highest possible value of $N$.

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