
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
In the London 2012 Olympic torch relay, the transfer route in Greece was divided into 6 segments, carried out by 6 different torchbearers. If the first torchbearer can only be chosen from A, B, or C, and the last torchbearer can only be chosen from A or B, then the total number of different transfer schemes is \_\_\_\_\_\_\_\_\_.

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