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 9.2.1) (judge verdict: Accepted)

	#include<bits/stdc++.h>
	using namespace std;
	#define xxx ios::sync_with_stdio(),cin.tie(0),cout.tie(0)
	#define rep(i,n) for(int i=0;i<n;i++)
	#define int long long
	int bp(int a, int b, int m) {
   		a %= m;
   		int res = 1;
    	while (b > 0) {
        	if (b & 1)
            	res = res * a % m;
       		a = a * a % m;
       	 	b >>= 1;
 	    }
    return res;
	}
	int max(int a, int b){
		return (a>b)?a:b;	
	}
	int csb( int n) 
{ 
    int count = 0; 
    while (n) { 
        count += n & 1; 
        n >>= 1; 
    } 
    return count; 
} 
	int solve(int x){
		int r=0;
		while(x>0){
			int t=csb(x);
			x%=t;
			r++;
		}
		return r;
	}

	signed main(){
		int test=1;
		//cin>>test;
		while(test--){
			int n;
			cin>>n;
			int x=1;
			if(n==0) {cout<<"No"<<endl;break;}
			while(true){
				if(x>9) {cout<<"No"<<endl;break;}
				if(n%x==0) {
					int t=n/x;
					if(t<=9){ cout<<"Yes"<<endl; break;}
					
				}
				x++;
			}		
		}
		return 0;
	}