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;

namespace a
{
    class Program
    {
        static void Main(string[] args)
        {
            var g1 = new int[]{1,3,5,7,8,10,12};
            var g2 = new int[]{4,6,9,11};
            var g3 = new int[]{2};
            
            var _ = Console.ReadLine().Split();
            var x = int.Parse(_[0]);
            var y = int.Parse(_[1]);

            var flag = false;
            if(g1.Contains(x) && g1.Contains(y)){
                flag = true;
            }
            if(g2.Contains(x) && g2.Contains(y)){
                flag = true;
            }
            if(g3.Contains(x) && g3.Contains(y)){
                flag = true;
            }

            Console.WriteLine(flag ? "Yes" : "No");
        }
    }
}