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.Generic;

class Program
{
    static void Main(string[] args)
    {
        //string[] str = Console.ReadLine().Split(' ');//2つ以上のスペース区切り入力の取得
        string str = Console.ReadLine();
        int A = int.Parse(str);
        //int B = int.Parse(str[1]);

        //string[] strHeight = Console.ReadLine().Split(' ');//2つ以上のスペース区切り入力の取得
        //string[] results = new string[N];

        for( int i = 1; i < 10; i ++ )
        {
            if( A % i == 0 )
            {
                int B = A / i;
                if( B >= 1 && B < 10)
                {
                    Console.WriteLine("Yes");
                    return;
                }
            }
        }

        Console.WriteLine("No");
    }
}