Problem:
Score : 100 points

Problem Statement

It is September 9 in Japan now.

You are given a two-digit integer N. Answer the question: Is 9 contained in the decimal notation of N?

Constraints

10≤N≤99

Input

Input is given from Standard Input in the following format:

N

Output

If 9 is contained in the decimal notation of N, print Yes; if not, print No.

Sample Input 1

29

Sample Output 1

Yes

The one's digit of 29 is 9.

Sample Input 2

72

Sample Output 2

No

72 does not contain 9.

Sample Input 3

91

Sample Output 3

Yes

Solution in Rust (1.15.1) (judge verdict: Accepted)

fn main(){
    let mut s = String::new();
    std::io::stdin().read_line(&mut s).ok();
    if s.chars().nth(0).unwrap() == '9' || s.chars().nth(1).unwrap() == '9'{
        println!("Yes");
    }
    else{
        println!("No");
    }
}