
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
Four students from a university went to the school's practice base for an internship during the summer vacation. Each student can choose one from base A, base B, and base C. Calculate the number of different ways to choose the bases for the four students.

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