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 Java8 (OpenJDK 1.8.0) (judge verdict: Accepted)

import java.util.*;
import java.io.*;
import java.lang.*;
// ArrayList<Integer>[] arr=new ArrayList[n];
public class Main{    
public static void main(String[] args) throws FileNotFoundException, IOException{
        Scanner s = new Scanner(System.in);
         StringBuilder sb=new StringBuilder();
         BufferedWriter out=new BufferedWriter(new OutputStreamWriter(System.out));
         int n=s.nextInt();
        Set<Integer>ss=new HashSet<>();
         for(int i=1;i<=9;i++){
            for(int j=i;j<=9;j++){
                ss.add(i*j);
            }
         }
         if(ss.contains(n)){
            System.out.println("Yes");
         }
         else{System.out.println("No");}
       // System.out.println(sb);
    }
}