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,n,c;
    scanf("%d",&a);
    for(n = 1;n < 10;n++)
    {
        if(a/n < 10)
        {
            if(a%n == 0)
            {
                c = 1;
                break;
            }
            else
            {
                c = 0;   
            }
            
        }
        else
        {
            c = 0;
        }
        
    }

    if(c == 0)
    {
        printf("NO\n");
    }
    else if(c == 1)
    {
        printf("YES");
    }
    return 0;
    
}