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: Wrong Answer)

import java.util.Scanner;

public class Main {
	public static void main(String[]args) {
		try(Scanner scan = new Scanner(System.in)){
			int N = scan.nextInt();
			
			int ok = 0;
			
			
			for(int i = 1;i<=9;i++) {
				
				
				if(N%i==0) {//割り切れるとは二つの席で表せる
					String s = String.valueOf(N/i);
					if(s.length()==1) {//さらにもう一つの席が人桁かどうか
						ok=1;
						break;
					}
					
				}
			}
			
			
			System.out.println(ok==1?"YES":"NO");
			
			
			
			
			
			
			
		}
		
		
	}
		

}