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++14 (GCC 5.4.1) (judge verdict: Accepted)

#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define all(x) x.begin(), x.end()
#define pb(x) push_back(x)
#define INF 1000000000000000000
#define IOS ios::sync_with_stdio(false); cin.tie(0); cout.tie(0);
#define x first 
#define y second
const int maxx = 2000006;
const int mod2 = 987654319;
const int maxlog = 20;
const ll mod = 1000000007;

int main() {
    IOS
    int N, ok = 0;
    cin >> N;
    for (int i = 1; i * i <= N; i++) {
        if (N % i == 0) {
            if (i <= 9 && (N / i) <= 9) ok = 1;
        } 
    }
    cout << (ok ? "Yes" : "No");
}