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 Mysterious_numbers {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int n = in.nextInt();
        String m = in.next();
        String s = "";
        for (int i = m.length() - 1; i >= 0; i--) {
            s += m.charAt(i);
        }
        //   System.out.println(s);
        int sum = Integer.parseInt(s )+n;
        System.out.println(sum);
    }
}