Problem: <image>

Input

The input contains two integers a1, a2 (0 ≤ ai ≤ 32), separated by a single space.

Output

Output a single integer.

Examples

Input

1 1


Output

0


Input

3 7


Output

0


Input

13 10


Output

1

Solution (in JAVA):

Solution:
import java.util.*;

public class Numbers {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		
		int a,b;
		
		a = sc.nextInt();
		b = sc.nextInt();
		int res;
		res = a;
		String s = Integer.toString(b);
		String reverse = new StringBuffer(s).reverse().toString();
		
		res += Integer.parseInt(reverse);
		
		System.out.println(res);
		
		
		
	}
}