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.Scanner;

public class Main {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = Integer.parseInt(sc.next());
		String ans = "";
		ans = calc(n) ? "Yes" : "No";
		System.out.println(ans);
	}

	public static boolean isPrime(int n) {
		if (n % 2 == 0)
			return true;
		for (int i = 3; i <= 100; i += 2) {
			if (n % i == 0)
				return true;
		}
		return false;
	}

	public static boolean calc(int n) {
		for (int i = 1; i <= 9; i++) {
			for (int j = 1; j <= 9; j++) {
				if (i * j == n)
					return true;
			}
		}
		return false;
	}

}