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>
#include <stdlib.h>

int main()
{
    int a[7]={1,3,5,7,8,10,12};
    int b[4]={4,6,9,11};
    int a1,b1,t,n,i,j;

    while(~scanf("%d %d",&a1,&b1))
    {
        if(a1==2&&b1==2)
            printf("Yes\n");
        else if(a1==2&&b1!=2||a1!=2&&b1==2)
            printf("No\n");
        else
        {
            t=n=0;
        for(i=0;i<7;i++)
        {
            if(a1==a[i])
                t++;
                if(b1==a[i])
                t++;
        }
        for(j=0;j<4;j++)
        {
            if(a1==b[j])
               n++;
            if(b1==b[j])
                n++;
        }
        if(t==2||n==2)
            printf("Yes\n");
        else
            printf("No\n");
        }

    }

    return 0;
}