
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
There are \(h + s\) lines on the plane, where \(h\) lines are horizontal, and the \(s\) lines satisfy:
1. None of them are horizontal.
2. Any two of them are not parallel.
3. Any three lines among the \(h + s\) lines do not intersect at a common point.

If these \(h + s\) lines divide the plane into exactly 1992 regions, find all pairs of positive integers \((h, s)\).

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