
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
Jason needs to remember the six-digit combination of his safe. He recalls using only digits 1 through 6 and that each even digit (2, 4, 6) was followed by an odd digit (1, 3, 5), and each odd digit was followed by an even digit. How many possible six-digit combinations could Jason have used?

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