
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 places, A and B, are $S$ kilometers apart. A person plans to arrive in $a$ hours $(a > 2)$. If they need to arrive 2 hours early, find the expression for the extra kilometers they need to walk per hour.

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