
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 university adopts a major preference policy in its college entrance examination enrollment. A candidate chooses 3 majors from the 10 majors provided by the university as his/her first, second, and third major preferences. Among these majors, majors A and B cannot be chosen simultaneously. The number of different ways the candidate can choose is $\boxed{\text{answer}}$ (answer with a number).

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