
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
Fishermen caught 80 fish from a pond, marked them, and released them back into the pond. On the second day, they caught 150 fish, among which 5 were marked. How many fish are there in the pond in total?

Note: The marked fish are evenly distributed with the rest.

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