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: Runtime Error)

import Control.Monad
import Control.Applicative
import Data.List


main :: IO()
main = do
  n <- readLn :: IO Int
  lst <- replicateM n readLn :: IO [Int]
  let l = (foldl (\x -> \y -> x + ((length y) `mod` 2)) 0  . splitBySame) lst
  print  l



splitBySame ::  (Ord a) => [a] -> [[a]]
splitBySame [] = []
splitBySame list = let (x:xs) = sort list; (lst, rest) = split x [] xs in lst : splitBySame rest
    where
      split :: (Ord a) => a -> [a]-> [a] -> ([a], [a])
      split n acc [] = (n:acc, [])
      split n acc (x:xs)
                  | n == x = split n (x:acc) xs
                  | n /= x = (n:acc, x:xs)