
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
Given that there are 30 students in the school club with 15 participating in chess, 18 in soccer, and 12 in music, and 14 participating in at least two activities, determine the number of students participating in all three activities.

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