
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
At the end of the year, the Science Club needs to elect a new committee where 6 positions are available. A total of 20 candidates have been nominated, of which 9 have previously served on the committee. Calculate how many possible committee selections include at least one past committee member.

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