
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
In the 2003 Women's Volleyball World Championship, the Chinese women's volleyball team won the championship with 11 victories in 11 matches. There were 12 teams in total in this championship, and a round-robin system was used (i.e., each pair of teams played one match against each other). How many matches were arranged by the organizers in total?

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