Problem:
Score : 100 points

Problem Statement

Based on some criterion, Snuke divided the integers from 1 through 12 into three groups as shown in the figure below.
Given two integers x and y (1 ≤ x < y ≤ 12), determine whether they belong to the same group.

Constraints

x and y are integers.

1 ≤ x < y ≤ 12

Input

Input is given from Standard Input in the following format:

x y

Output

If x and y belong to the same group, print Yes; otherwise, print No.

Sample Input 1

1 3

Sample Output 1

Yes

Sample Input 2

2 4

Sample Output 2

No

Solution in C# (Mono 4.6.2.0) (judge verdict: Accepted)

using System;
using System.Linq;
class Program
{
    public static void Main()
    {
        string[] str = Console.ReadLine().Split(' ');
        int x, y;
        x = int.Parse(str[0]);
        y = int.Parse(str[1]);
        int[] g1 = { 1, 3, 5, 7, 8, 10, 12 };
        int[] g2 = { 4, 6, 9, 11 };
        int[] g3 = { 2 };
        bool f = (g1.Contains(x) && g1.Contains(y)) || (g2.Contains(x) && g2.Contains(y)) || (g3.Contains(x) && g3.Contains(y));
        Console.WriteLine(f ? "Yes" : "No");
    }
}