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;
  int g1, g2;

  scanf("%d%d",&x,&y);
    if (x==1 || x==3 || x==5 || x==7 || x==8 || x==10 || x==12) { g1=1; }
    else if (x==4 || x==6 || x==9 || x==11) { g1=2; }
    else { g1=3; }

    if (y==1 || y==3 || y==5 || y==7 || y==8 || y==10 || y==12) { g2=1; }
    else if (y==4 || y==6 || y==9 || y==11) { g2=2; }
    else { g2=3; }

    if (g1 == g2)
      puts("Yes");
    else
      puts("No");

  return 0;
}