
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
A residential building's occupants each subscribe to 2 different newspapers. If the residents only subscribe to newspapers A, B, and C, with 30 subscriptions for A, 34 for B, and 40 for C, how many households subscribe to both newspaper B and newspaper C?

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