
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]


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At a workshop with 40 professionals, 18 professionals used laptops, 14 used tablets, and 16 drank coffee. 7 professionals used both laptops and tablets, 4 used both tablets and coffee, and 5 used both laptops and coffee. Additionally, 3 professionals used all three: laptops, tablets, and coffee. How many professionals did not use any laptop, tablet, or drink coffee?

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