
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
A bought some stocks for 10,000 yuan, then sold them to B, making a 10% profit. Later, B sold the stocks back to A, but B incurred a 10% loss. Finally, A sold the stocks to C at 90% of the price A bought them back from B. Assuming other expenses are negligible, what is A's profit or loss situation?

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