
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
Radovan read an interesting book. Yesterday, he read 15 pages, and today he read 12 pages. He realized with surprise that the sum of the page numbers he read yesterday is the same as the sum of the page numbers he read today. On which page will he start reading tomorrow? (Radovan does not skip any pages or read any page twice. He never ends his daily reading in the middle of a page.)

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