
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
As an evening sports activity, I walked around the block once, and my sister ran several laps along the same direction and route. We left home and returned home at the same time. During this period, my sister passed me twice. If she runs around the block in the opposite direction while both of us maintain our original speeds, she will pass me by \_\_\_\_\_\_ times.

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