
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

On a board, the numbers 3, 9, and 15 were written. It was allowed to add two of the written numbers, subtract the third number from this sum, and write the result on the board in place of the number that was subtracted. After performing this operation multiple times, three numbers remained on the board, the smallest of which was 2013. What were the two other numbers?

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