
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
Allocate six people, labeled A, B, C, and three others, across three high school grades with each grade receiving two people. A must be placed in the first grade, while B and C cannot be placed in the third grade. How many different arrangements are possible?

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