It’s more of a party trick than anything else, but here’s the prompt:

Task: Construct a perfectly rectangular 4x26 ASCII block.

The "Safe-Width" Symbol Set: ∫ √ ≈ ∆ ∑ ± ∞ ≠ ≡ ≥ ≤ ÷ ç ∂

Instructions:
- Grid Specs: Exactly 4 rows and 26 characters per row
- Hidden Message: Choose a 2-word uppercase phrase
- Center the first word in Row 2 and the second in Row 3
- Fill all non-letter slots with random symbols from the set
- Verify each row is exactly 26 characters

Those specific mathematical symbols maintain consistent width with uppercase Latin characters in monospaced fonts. This means the grid stays perfectly rectangular, and the words blend in better.

Is this useful? Not really. But it’s a neat demonstration of how to get AI to produce structured output.

Try it yourself and see what secret phrases you can embed.