
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 practice, the "catch-mark-recapture" method is often used to estimate the number of fish in a pond. For example, 100 fish are randomly caught from the pond, each fish is marked and then released back into the pond. Several days later, 108 fish are randomly caught again from the pond, and among these, 9 fish are found to be marked. Thus, the estimated number of fish in the pond is ______.

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