
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
An engineer arrives at the train station every day at 8 AM. At exactly 8 AM, a car arrives at the station and takes the engineer to the factory. One day, the engineer arrived at the station at 7 AM and started walking towards the car. Upon meeting the car, he got in and arrived at the factory 20 minutes earlier than usual. How long did the engineer walk? The speeds of the car and the engineer are constant.

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