
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
There are a total of 280 books on shelves A and B. If 12.5% of the books from shelf A are moved to shelf B, then the number of books on the two shelves will be equal. How many books were originally on shelf A?

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