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: Wrong Answer)

#include <stdio.h>
#include <string.h>


int main(void)
{
	int x;
	int y;

	scanf("%d", &x);
	scanf("%d", &y);

	if (x = 1) {
		x = 1;
	}
	if (x = 3) {
		x = 1;
	}
	if (x = 5) {
		x = 1;
	}
	if (x = 7) {
		x = 1;
	}
	if (x = 8) {
		x = 1;
	}
	if (x = 10) {
		x = 1;
	}
	if (x = 12) {
		x = 1;
	}

	if (x = 4) {
		x = 2;
	}
	if (x = 6) {
		x = 2;
	}
	if (x = 9) {
		x = 2;
	}
	if (x = 11) {
		x = 2;
	}

	if (x = 2) {
		x = 3;
	}


	if (y = 1) {
		y = 1;
	}
	if (x = 3) {
		y = 1;
	}
	if (y = 5) {
		y = 1;
	}
	if (y = 7) {
		y = 1;
	}
	if (y = 8) {
		y = 1;
	}
	if (y = 10) {
		y = 1;
	}
	if (y = 12) {
		y = 1;
	}

	if (y = 4) {
		y = 2;
	}
	if (y = 6) {
		y = 2;
	}
	if (y = 9) {
		y = 2;
	}
	if (y = 11) {
		y = 2;
	}

	if (y = 2) {
		y = 3;
	}



	if (x = y) {
		puts("yes");
		}
	else {
		puts("no");
	}

	return 0;

}