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 (Clang 3.8.0) (judge verdict: Wrong Answer)

#include<stdio.h>
#include<stdlib.h>
#pragma warning(disable:4996)

int main()
{
	int n, flag = 0;
	scanf("%d", &n);
	for (int i = 2; i < 10; i++) {
		if (n%i == 0) {
			if (n / i < 10) {
				flag = 1;
				break;
			}
		}
	}
	if (n == 1) {
		flag = 1;
	}
	if (flag == 1) {
		printf("yes\n");
	}
	else {
		printf("no\n");
	}
}