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.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace AtCoder.Abc
{
    public class QuestionA
    {
        public static void Main(string[] args)
        {
            // 整数配列の入力
            var inputLongArray = Console.ReadLine().Split(' ').Select(i => int.Parse(i)).ToArray();
            int x = inputLongArray[0];
            int y = inputLongArray[1];

            var groupA = new[] { 1, 3, 5, 7, 8, 10, 12 };
            var groupB = new[] { 4, 6, 9, 11 };
            var groupC = new[] { 2 };

            if (groupA.Contains(x) && groupA.Contains(y)) {
                Console.WriteLine("Yes");
                return;
            } else if (groupB.Contains(x) && groupB.Contains(y)) {
                Console.WriteLine("Yes");
                return;
            } else if (x == 2 && y == 2) {
                Console.WriteLine("Yes");
                return;
            }

            Console.WriteLine("No");
            return;
        }
    }
}