
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
The largest ocean in the world is the Pacific Ocean, with an area of 17,996,800 square kilometers. Rewrite this number in terms of "ten thousand" as the unit, and round it to the nearest "ten thousand" square kilometers.

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