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# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
class Atcoder_Templete
{
    static void Main(string[] args)
    {
        string input_string = Console.ReadLine();
        int input_int = int.Parse(input_string);
        string result = Judge(input_int);

        

        //出力
        Console.WriteLine(result);
    }

    public static string Judge(int X)
    {
        for (int i = 9; i >= 1; i--)
        {
            if(X % i == 0)
            {
                int newX = X / i;
                for(int j = 9; j >= 1; j--)
                {
                    if(newX % j == 0 && newX / j == 1)
                    {
                        return "Yes";
                    }
                }
            }
        }
        return "No";
    }

}