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 Haskell (GHC 7.10.3) (judge verdict: Accepted)

solve []      = "No"
solve (x:xs)
  | x=='9'    = "Yes"
  | otherwise = solve xs

solve2 x = if any (=='9') x then "Yes" else "No"

solve3 []       = "No"
solve3 ('9':xs) = "Yes"
solve3 (x:xs)   = solve3 xs

main = do
  a <- getLine
  putStrLn $ solve3 a