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 OCaml (4.02.3) (judge verdict: Accepted)

let id x = x
let c1 = Scanf.scanf "%c" id
let c2 = Scanf.scanf "%c\n" id
  
let ans = if c1='9'||c2='9' then "Yes" else "No"
  
let () =
  Printf.printf "%s\n" ans