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 3.8.0) (judge verdict: Accepted)

#include <stdio.h>
int main(void){
    int a[12]={1,3,5,7,8,10,12,4,6,9,11,2};
    int x,y,stx,sty,i;
    scanf("%d %d",&x,&y);
    for(i=0;i<12;i++){
        if(x==a[i]){
            stx=i;
        }
        if(y==a[i]){
            sty=i;
        }
    }
    if((stx>=0)&&(stx<=6)&&(sty>=0)&&(sty<=6)){
        printf("Yes\n");
    }else if((stx>=7)&&(stx<=10)&&(sty>=7)&&(sty<=10)){
        printf("Yes\n");
    }else if((stx==11)&&(sty==11)){
        printf("Yes\n");
    }else{
        printf("No\n");
    }
    return 0;
}