use std::io::Read;

fn read<T: std::str::FromStr>() -> T {
    let token: String = std::io::stdin()
        .bytes()
        .map(|c| c.ok().unwrap() as char)
        .skip_while(|c| c.is_whitespace())
        .take_while(|c| !c.is_whitespace())
        .collect();
    token.parse().ok().unwrap()
}

fn main() {
    let n: i32 = read();
    for a in 1..=10 {
        let b = n - a;
        if 1 <= b && b <= 10 {
            println!("{} {}", a, b);
        }
    }
}