
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
The page numbers of a book are consecutive natural numbers, 1, 2, 3, … When adding up these page numbers, one of the pages is counted twice, leading to an incorrect total of 1997. What is the page number that was counted twice?

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