use std::io::{stdout, Result, Write}; fn main() -> Result<()> { let (s, e) = (br#"use std::io::{stdout, Result, Write}; fn main() -> Result<()> { let (s, e) = (br#""#, br#"#); let start = s.iter().chain(s).chain(&[b'"',b'#']).chain(b", br#\""); let end = e.iter().chain(b"\"").chain(e).chain(b"\n"); stdout().write_all(&start.chain(end).copied().collect::>()) }"#); let start = s.iter().chain(s).chain(&[b'"',b'#']).chain(b", br#\""); let end = e.iter().chain(b"\"").chain(e).chain(b"\n"); stdout().write_all(&start.chain(end).copied().collect::>()) }