
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 the high school teaching building has five floors and four students go to one of the floors from the second to the fifth, with only one person attending class on the fifth floor, and student A does not attend class on the second floor, calculate the total number of possible situations that satisfy these conditions.

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