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.Linq;

namespace Part2 {
    class Program {
        static void Main(string[] args) {
            var input = Console.ReadLine();
            var num = int.Parse(input);
            var counter = 0;
            for (var i = 0; i < 10; i++) {
                for (var j = 0; j < 10; j++) {
                    if (i * j == num) counter++;
                }
            }
            if(counter > 0) {
                Console.WriteLine("Yes");
            } else {
                Console.WriteLine("No");
            }
        }
    }
}