#![allow(dead_code)]
use std::io::{stdin, BufRead};

fn solve(s: String) -> &'static str {
    if s.chars().all(|c| c == '9') {
        "Yes"
    } else {
        "No"
    }
}

fn main() {
    let s = get_line();
    println!("{}", solve(s));
}

fn get_line() -> String {
    let mut buf = String::new();
    stdin().lock().read_line(&mut buf).unwrap();
    buf.trim_end().to_string()
}