
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

We wrote the numbers from 1 to 2009 on a piece of paper. In the second step, we also wrote down twice each of these numbers on the paper, and then we erased the numbers that appeared twice. We repeat this process such that, in the $i$-th step, we write $i$ times each of the numbers from 1 to 2009 on the paper and then erase the numbers that appear twice. How many numbers will be on the paper after the 2009th step?

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