
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
A conference hall is arranging chairs in rows for a seminar. Each row can accommodate $15$ chairs, and initially, there are $150$ chairs in total. The hall expects $125$ attendees and wants to have as few empty seats as possible while ensuring all rows of chairs are complete. However, they also want at least one row to be entirely empty for flexibility in space usage. How many chairs should be removed?

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