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;
using System.Linq;

namespace ABC144B
{
    class Program
    {
        static void Main(string[] args)
        {
            //var inputArr = Console.ReadLine().Split().Select(int.Parse).ToArray();
            var inputInt = int.Parse(Console.ReadLine());

            //int ans = 0;
            string ans = "No";

            for(int i = 1; i < 10; i++)
            {
                for (int j = 1; j < 10; j++)
                    if (i * j == inputInt) ans = "Yes";
            }

            Console.WriteLine(ans);
            Console.ReadKey();
        }
    }
}