
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 professor needs to assign grades to a class of 12 students. The professor is still very kind and restricts the grades to A's, B's, and C's. How many ways can the professor distribute these grades, ensuring that at least one student receives each grade?

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