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 main(void)
{
	char s[2],t[2];
	int i=0;
	scanf("%d%d",&s[0],&s[1]);
	for(i;i <= 1;i++)
	{
		if(s[i]==2)
			{t[i]=0;}
		else if(s[i]==4 || s[i]==6 || s[i]==9 || s[i]==11)
			{t[i]=1;}
		else
			{t[i]=2;}
	}
	if(t[0]==t[1])
		{printf("Yes");}
	else
		{printf("No");}
	return 0;
}