
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
Given that point $C$ is the midpoint between points $A$ and $B$. At 7:00 AM, Car 1 departs from $A$ towards $B$, Car 2 departs from $B$ towards $A$, and Car 3 departs from $C$ towards $A$. When Car 1 and Car 3 meet, Car 2 has traveled exactly $\frac{3}{8}$ of the total distance. At 10:00 AM, Car 3 reaches point $A$, and at 10:30 AM, Car 2 arrives at point $A$. At this moment, Car 1 is 84 km away from point $B$. What is the distance between points $A$ and $B$ in kilometers?

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