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 (Clang 3.8.0) (judge verdict: Wrong Answer)

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