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()
{
    int i,p=0,f=0;
    char ch[7]={1,3,5,7,8,10,12},ch1[4]={4,6,9,11},ch2[1]={2};
    int a,b;
    scanf("%d%d",&a,&b);
    for(i=0;i<7;i++)
    {
        if(ch[i]==a){
            p=1;
            break;
        }
    }
    for(i=0;i<4;i++)
    {
        if(ch1[i]==a)
        {
            p=2;
            break;
        }
    }
    for(i=0;i<1;i++)
    {
        if(ch2[i]==a)
        {
            p=3;
            break;
        }
    }
    if(p==1){
    for(i=0;i<7;i++)
    {
        if(ch[i]==b)
        {
            f=1;
            break;
        }
    }}
    else if(p==2)
    {
        for(i=0;i<4;i++)
        {
            if(ch1[i]==b)
            {
                f=1;
                break;
            }
        }
    }
    else if(p==3)
    {
        for(i=0;i<1;i++)
        {
            if(ch2[i]==b)
            {
                f=1;
                break;
            }
        }
    }
    if(f==1)
        printf("Yes\n");
    else
        printf("No\n");
    return 0;
}