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 C++14 (GCC 5.4.1) (judge verdict: Accepted)

#include <bits/stdc++.h>
#define rep(X,N) for(ll X = 0; X < (N); X++)
#define PI (acos(-1.0))
#define pback push_back
#define mpair make_pair
#define divceil(A, B) ((A + (B - 1)) / B)
#define MODN 1000000007
#define ALL(V) (V).begin(),(V).end()
#define CERR if(false) cerr

typedef long long ll;

using namespace std;

int main(){

    int n;
    cin >> n;

    bool ans = (n / 10 == 9) || (n % 10 == 9);

    cout << (ans ? "Yes" : "No") << endl;
    return 0;
}