
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 bookshelf, there are four volumes of Astrid Lindgren's collected works, each with 200 pages, arranged in order. A worm living in this collection has gnawed its way from the first page of the first volume to the last page of the fourth volume. How many pages did the worm gnaw through?

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