
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
When Wang Ming is 300 meters away from home after school, his sister and a dog run towards him. Both Wang Ming and his sister have a speed of 50 meters per minute, while the dog has a speed of 200 meters per minute. The dog, upon meeting Wang Ming, continuously runs back and forth between Wang Ming and his sister at the same speed. How many meters has the dog run in total when Wang Ming and his sister are 10 meters apart?

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