
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
During the May Day period, the Palace Museum simultaneously hosts the exhibitions "Opera Culture Exhibition", "Ming Dynasty Imperial Cellar Porcelain Exhibition", "Ancient Green Landscape Painting Exhibition", and "Zhao Mengfu Calligraphy and Painting Exhibition". A student decides to visit one of these exhibitions in the morning and another in the afternoon on May Day, and they must visit at least one painting exhibition. Calculate the total number of different visiting plans.

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