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 <iostream>
#include <string>
#include <cstdio>
#include <cstring>
#include <cmath>
#include <vector>
#include <algorithm>
#include <cstdio>
#include <queue>
#define rep(i, n) for (int i = 0; i < (n); i++)
#define int long long
#define INF 1e9 + 7
#define cae cout << ans << endl;
#define cye cout << "Yes" << endl;
#define cne cout << "No" << endl;
#define r0 return 0;
#define ll long long
using namespace std;
typedef pair<int,int>P;
signed main() {
    int n;
    cin >> n;
    if (n % 10 == 9 || n / 10 == 9) {
        cye
    } else {
        cne
    }
    r0
}