rustc 1.79.0 (129f3b996 2024-06-10)
binary: rustc
commit-hash: 129f3b9964af4d4a709d1383930ade12dfe7c081
commit-date: 2024-06-10
host: x86_64-unknown-linux-gnu
release: 1.79.0
LLVM version: 18.1.7

use std::io::{self, BufRead};

fn main() -> Result<(), io::Error> {
  let stdin = io::stdin(); // We get `Stdin` here.
  let mut iterate_in = stdin.lock().lines();

  // that's how to run a single request for a number alone in a line
  let count = iterate_in.next().unwrap().unwrap().to_string().parse::<usize>().unwrap();

  let mut rects = vec![];
  for _ in 0..count {
    let vecline = iterate_in.next()
      .unwrap()
      .unwrap()
      .split_whitespace()
      .map(|s| s.parse::<u32>().unwrap()-1)
      .collect();

    let el = (rects[0],rects[1],rects[2],rects[3]);
    rects.push(el);
  }

  if let Some(solution) = rects.to_string() {
    for s in solution {
      println!("{} {}", s.0+1, s.1+1);
    }
  }

  Ok(())
}