
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
Two cleaning vehicles, A and B, are tasked with cleaning the roads between East City and West City. Vehicle A requires 10 hours to clean the road alone, and Vehicle B requires 15 hours. When both vehicles start from East City and West City respectively and move towards each other, they meet at a point where Vehicle A has cleaned 12 kilometers more than Vehicle B. How many kilometers apart are East City and West City?

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