
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 family photo album, there are ten photographs. Each of them depicts three people: a man standing in the center, his son to the left, and his brother to the right. What is the minimum number of different people that can be shown in these photographs if it is known that all ten men standing in the center are different?

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