
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
There is a parking lot with seven parking spaces numbered from 1 to 7. Now, 2 different trucks and 2 different buses are to be parked at the same time, with each parking space accommodating no more than one vehicle. If vehicles of the same type are not parked in adjacent spaces, then there are a total of $\boxed{440}$ different parking arrangements.

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