use std::io::*;

fn main() {
    let mut s: String = String::new();
    std::io::stdin().read_to_string(&mut s).ok();
    let mut itr = s.trim().split_whitespace();
    let n: usize = itr.next().unwrap().parse().unwrap();
    if n == 1 {
        println!("1");
    } else {
        for i in (0..n).rev() {
            for _ in 0..n {
                print!("{}", i);
            }
        }
        println!("");
    }
}