Problem:
Score : 200 points

Problem Statement

Having learned the multiplication table, Takahashi can multiply two integers between 1 and 9 (inclusive) together.

Given an integer N, determine whether N can be represented as the product of two integers between 1 and 9. If it can, print Yes; if it cannot, print No.

Constraints

1 \leq N \leq 100

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

If N can be represented as the product of two integers between 1 and 9 (inclusive), print Yes; if it cannot, print No.

Sample Input 1

10

Sample Output 1

Yes

10 can be represented as, for example, 2 \times 5.

Sample Input 2

50

Sample Output 2

No

50 cannot be represented as the product of two integers between 1 and 9.

Sample Input 3

81

Sample Output 3

Yes

Solution in C (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<stdio.h>
int main(void){
    int n,i;
    int res_flag=0;
    int RESULT_OK;
    RESULT_OK = scanf("%d",&n);

    if (RESULT_OK ==1){
        for (i=9;i>1;i--){
            if(n%i==0 && n/i <10){
                res_flag =0;
                break;
            }else{
                res_flag =1;

            }
        }
        if(res_flag==1){
            printf("No\n");
        }else{
            printf("Yes\n");
        }
    }
    else{
        return 0;
    }
    return 0;
}