
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
The metro of city $\mathrm{N}$ consists of three lines as illustrated in the diagram. Initially, trains are located at the marked stations and start moving in the direction indicated by the arrow. Every minute, each train travels exactly one segment between stations. Upon reaching the terminal station, a train immediately turns around and starts moving in the opposite direction. At which stations will the trains be after 2016 minutes?

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