
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
Estimate the population of the island of Atlantis in the year 2060, assuming the current population in 2000 is 400 and it doubles every 20 years, but reduces by 25% in 2040.

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