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 Go (1.6) (judge verdict: Accepted)

package main

import (
	"fmt"
)

func group(n int) string {
	if n == 4 || n == 6 || n == 9 || n == 11 {
		return "B"
	} else {
		return "A"
	}
}

func main() {
	var x, y int
	fmt.Scan(&x, &y)

	if x == 2 || y == 2 {
		fmt.Println("No")
		return
	}

	xg := group(x)
	yg := group(y)

	if xg == yg {
		fmt.Println("Yes")
	} else {
		fmt.Println("No")
	}
}