
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 are only two-wheeled motorcycles and four-wheeled cars parked in a parking lot, and the number of motorcycles is greater than the number of cars. There are a total of 84 wheels. After driving away 3 vehicles, the number of wheels in the parking lot is 3 times the number of vehicles. How many motorcycles were originally parked in the parking lot?

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