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.Scanner;


public class Numbers {
	public static void main(String[] args){
		Scanner s = new Scanner(System.in);
		long a = s.nextInt();
		long b = s.nextInt();
		long rev = reverse(b);
		System.out.println(rev + a);
		
	}
	public static long reverse(long a){
		long result = 0;
		while(a > 0){
			result = result*10 + a%10;
			a = a/10;
		}
		return result;
	}
}