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 (Clang 10.0.0) (judge verdict: Accepted)

#include <stdio.h>

int grouping(int);

int main(void)
{
	int x,y;
	scanf("%d %d",&x,&y);
 	
 	x = grouping(x);
 	y = grouping(y);

 	if(x == y) printf("Yes");
 	else printf("No");

   	return 0;
}

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