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: Accepted)

/*
 * kadai3_4
 * kamecha
 */
#include<stdio.h>

int main(void){
    int num;
    scanf("%d", &num);
    /*
     * 1~9のどれかで割り切れたらOK
     */
    int flag = 0;  //どれかで割り切れたらflag = 1
    for(int i = 1; i <= 9; i++){
        if(num%i == 0){
            /*
             * 商が1~9だとOK
             */
            int devided = num/i;
            if(devided >= 1 && devided <= 9){
                puts("Yes");
                flag = 1;
                break;
            }
        }
    }
    /*
     * どれにも当てはまらなかった
     */
    if(!flag)   puts("No");
    return 0;
}