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;

public class MainClass{
	public static void Main(string[] args){
		var line = Console.ReadLine ().Split(' ');
		var x = int.Parse(line[0]);
		var y = int.Parse(line [1]);
		var list1 = new int[]{1,3,5,7,8,10,12};
		var list2 = new int[]{4,6,9,11};
		var list3 = new int[]{ 2 };
		var flag1 = list1.Contains (x) && list1.Contains (y);
		var flag2 = list2.Contains (x) && list2.Contains (y);
		var flag3 = list3.Contains (x) && list3.Contains (y);
		if (flag1 || flag2 || flag3) {
			Console.WriteLine ("Yes");
		} else {
			Console.WriteLine("No");
		}

	}
}