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 x,y,i,j;
    int group1[7]={1,3,5,7,8,10,12};
    int group2[4]={4,6,9,11};
    scanf("%d%d",&x,&y);
    if(x==y){
        printf("Yes\n");
        return 0;
    }
    else if(x==2||y==2){
        printf("No\n");
        return 0;
    }
    else {
        for(i=0;i<7;i++){
            if(group1[i]==x){
                for(j=0;j<7;j++){
                    if(group1[j]==y){
                        printf("Yes\n");
                        return 0;
                    }
                }
                if(j>=7){
                    printf("No\n");
                    return 0;
                }
            }
        }
        for(i=0;i<4;i++){
            if(group2[i]==x){
                for(j=0;j<4;j++){
                    if(group2[j]==y){
                        printf("Yes\n");
                        return 0;
                    }
                }
                if(j>=4){
                    printf("No\n");
                    return 0;
                }
            }
        }
    }
   return 0;
}