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 (GCC 5.4.1) (judge verdict: Accepted)

#include <stdio.h>

int group(int x) {
	switch (x){
		case 1: case 3: case 5: case 7: case 8: case 10: case 12:
			return 1;
		case 4: case 6: case 9: case 11:
			return 2;
		case 2:
			return 3;
		default:
			return 0;
	}
}

int main(void) {
	int x, y;
	if (scanf("%d%d", &x, &y) != 2) return 1;
	puts(group(x) == group(y) ? "Yes" : "No");
	return 0;
}