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 Scala (2.11.7) (judge verdict: Accepted)

import io.StdIn.readInt
 
object Main extends App {
  val x = readInt
  println(if ((x % 10) == 0 || (x / 10) % 9 != 0 && (x % 10) % 9 != 0) "No" else "Yes")
}