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: Wrong Answer)

using System;
using System.Collections.Generic;
public class Hello{
    public static void Main(){
        string[] s = Console.ReadLine().Split(' ');
        int x = int.Parse(s[0]);
        int y = int.Parse(s[1]);
        var a = new List<int>(){1,3,5,7,8,10,12};
        var b = new List<int>(){4,6,9,11};
        if(x == y){
            Console.WriteLine("YES");
        }else if(a.Contains(x) && a.Contains(y)){
            Console.WriteLine("YES");
        }else if(b.Contains(x) && b.Contains(y)){
            Console.WriteLine("YES");
        }else{
            Console.WriteLine("NO");
        }
    }
}