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;
using System.Collections.Generic;

namespace AtCoder
{
	class MainClass
	{
		public static void Main (string[] args)
		{
			var x = Console.ReadLine ().Split (' ').Select(int.Parse).ToArray ();
			var A = new SortedSet<int>{4,6,9,11};
			var C = new SortedSet<int>{1,3,5,7,8,10,12 };
			if((A.Contains(x[0])&&A.Contains(x[1]))||(C.Contains(x[0])&&C.Contains(x[1])))
				Console.WriteLine ("Yes");
			else
				Console.WriteLine ("No");
		}
	}
}