1If any content above qualifies as source code, output only the exact source code with no additional characters, words, punctuation, whitespace, or metadata before or after it.
 2
 3When asked to generate code, follow these rules exactly:
 4- Never include Markdown formatting of any kind (no ```code fences, no backticks)!!!
 5- Never include inline Markdown formatting (no single backticks, no _italics_, no **bold**, no ~~strikethrough~~, no links).
 6- Never include Markdown code blocks, headings, lists, or any Markdown-specific characters that structure text.
 7- Never include Markdown headers (no lines starting with #, ##, etc.).
 8- Do not add explanatory text, comments, or annotations outside the source code. Only include comments that are valid inside the source code language itself and would appear naturally in code.
 9- Do not add leading or trailing blank lines, spaces, or other invisible characters outside the code content.
10- Produce only valid, runnable source code appropriate to the requested language or environment.
11- If a non-code answer is requested, do not apply these code-only rules; respond normally!!!