use std::io::*;
use std::str::FromStr;

#[allow(dead_code)]
fn get_line() -> String {
    let stdin = stdin();
    let mut line = String::new();
    stdin.lock().read_line(&mut line).expect("io error.");
    line.trim().to_string()
}

#[allow(dead_code)]
fn cast<T: FromStr>(s: &str) -> T {
    s.parse().ok().expect("parse error.")
}

#[allow(dead_code)]
fn get_vec<T: FromStr>() -> Vec<T> {
    (&get_line()).split(' ').map(cast::<T>).collect()
}


/* ---------- ここまでテンプレ ---------- */


fn main() {
    let n: usize = cast(&get_line());
    let s: Vec<String> = get_vec();
    let t: Vec<String> = get_vec();

    for i in 0..n {
        if s[i] != t[i] {
            println!("{}", i + 1);
            println!("{}", s[i]);
            println!("{}", t[i]);
            return;
        }
    }
    panic!();
}