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;

/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */

/**
 *
 * @author mas1991
 */
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a =in.nextInt();
        int b=in.nextInt();
        StringBuilder s=new StringBuilder(b+"");
        s.reverse();
        b=Integer.parseInt(s.toString());
        System.out.println(a+b);
    }
}