
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
In a plane, there are \(h + s\) lines, where \(h\) lines are horizontal and \(s\) lines satisfy the following conditions:
1. None of the \(s\) lines are horizontal.
2. Any two of the \(s\) lines are not parallel.
3. Among the \(h + s\) lines, any three lines do not intersect at a single point, and these \(h + s\) lines exactly divide the plane into 1992 regions.
Find all positive integer pairs \((h, s)\).

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