use std::io;

fn main() {
    let mut n = String::new();
    io::stdin().read_line(&mut n).ok();
    let _n: usize = n.trim().parse().unwrap();
    let mut s = String::new();
    io::stdin().read_line(&mut s).ok();
    let s = s.trim();

    let ans = s.chars().map(|x| ((219 - x as u8) as char)).collect::<Vec<char>>();
	let ans: String = ans.iter().collect();
	
    println!("{}", ans);
}