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>
int main(){
  int N;
  for(N = 1;N < 82;N++){
  int count = 0;
  int S[100] ={1,2,3,4,5,6,7,8,9};
  scanf("%d",&N);
  if(N > 82){
    printf("No");
    return 0;}
  for(int i = 0;i<9;i++){
    if(N%S[i] == 0 && N/S[i] <=9)count++;
   }
  if(count == 0)printf("No");
  else printf("Yes");
  }
}