
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
When arranging the natural numbers 1, 2, 3, …, n in a sequence $a_1, a_2, …, a_n$, such that $|a_1-1|+|a_2-2|+…+|a_n-n| \leq 4$, determine the total number of possible sequences when n = 6.

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