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 Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.Scanner;

/**
 * Created by lyc on 2017/10/12.
 */
class Main{
    public static void main(String[] strings) {
        Scanner scanner = new Scanner(System.in);
        String s = scanner.next();

        if (s.indexOf("9") != -1) {
            System.out.print("Yes");
        } else {
            System.out.print("No");
        }

    }
}