
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
155 birds sit on a circle centered at O. Birds at points A and B are mutually visible if and only if the angle ∠AOB is less than or equal to 10 degrees. Multiple birds may sit at the same point. What is the smallest possible number of mutually visible pairs of birds?

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