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)

use std::io::*;

fn read_int() -> i64 {
  let mut buf = String::new();
  stdin().read_line(&mut buf).ok();
  buf.trim().parse().unwrap()
}

fn main() {
  let n = read_int();
  let ans = if n.to_string().chars().any(|c| c=='9') {"Yes"} else {"No"};
  println!("{}", ans);
}