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 Python (3.4.3) (judge verdict: Runtime Error)

N = int(input())
a = [int(input()) for i in range(N)]
n = N
for i in range(N-1):
	j = i + 1
	while j <= N-1:
		if a[i] != a[j]:
			j += 1
		else:
			n -= 2
			break		
print(n)