
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
People A, B, C, and D need to be arranged to labor education bases A, B, and C, where each person goes to one base and each base has at least one person. Find the total number of ways that B can be assigned to base A.

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