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;
using System.Collections;
using System.Collections.Generic;
using System.Linq;

class EightyONe
{
    static void Main(string[] args)
    {
        var input = int.Parse(Console.ReadLine());

        var ans = "";
        bool flag = false;

        if (input > 81)
        {
            ans = "No";
        }
        else
        {
            for(var i = 1; i < 10; i++)
            {
                if(input % i == 0 && input / i <= 9)
                {
                    ans = "Yes";
                    flag = true;
                    break;
                }
            }

            if (!flag)
            {
                ans = "No";
            }
        }

        Console.WriteLine(ans);


    }
}