
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 Qingxi bus station operates three bus routes: Route 1 departs every 4 minutes, Route 3 departs every 6 minutes, and Route 7 departs every 9 minutes. If they all depart from the bus station at 7:00 AM simultaneously, the next time they will all depart simultaneously is at ____.

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