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 a = 0;
	int flag = 0;
	int i,j = 0;

	scanf("%d",&a);

	for(i = 1 ; i < 10;i++){

		for(j = 1;j < 10;j++){
			if((a / i > 0 && a / i <= 9) && j * (a/i) == a){
				flag = 1;
				break;
			}else{
			flag = 0;
			}
		}
		if(flag == 1) break;


	}

	if(flag == 1){
		printf("Yes");
	}else{
		printf("NO");
	}

	return 0;
}