“Include the correct header” (choose one of twelve)

{
  "input": {
    "prompt": " Humorous infographic-style illustration showing a central box “Hello, World!” connected by arrows to many header files arranged like a chaotic subway map: `<stdio.h>`, `<wchar.h>`, locale-related headers, “freestanding?” “vendor opinions,” “optional safer interfaces,” etc. Each branch has small caveats in tiny text and a final arrow back to “still subtly different.” Clean vector look, readable labels, deliberately overcomplicated layout."
  }
}