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: Wrong Answer)

#include<iostream>

const int digit = 2; //今回は2桁なので　digit=2; 何桁でも対応するプログラムが書きたい

int main() {
	bool flag=false;
	int num;
	std::cin >> num;

	for (int i = 0; i < digit; i++) {
		if (((num % 10) % 9 == 0 )&& (!num%10)) {
			flag = true;
			break;
		}
		num /= 10;
	}

	std::cout << (flag ? "Yes" : "No") << std::endl;

	return 0;
}