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 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
int main(){
	int a,b,i;
	while(~scanf("%d",&a)){
		while(a!=0){
		b=a%10;
		a=a/10; 
		if(b==9)
		printf("Yes\nThe one's digit of 29 is 9.\n");
        else
        printf("No\n%d does not contain 9\n",a);
    	}
	}
	return 0;
}