
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
There are $2n$ cards, each numbered from 1 to $n$ (each number appearing exactly on two cards). The cards are placed face down on the table. A set of $n$ cards is called good if each number appears exactly once in the set. Baron Munchausen claims that he can point to 80 sets of $n$ cards, at least one of which is definitely good. For what maximum value of $n$ can the baron's words be true?

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