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 MysteriousNumbers {

    static Scanner in;
    static long a, b, c;
    static String B;

    public static void main(String[] args) {
        in = new Scanner(System.in);
        a = in.nextLong();
        B = in.next();
        b = Reverse();
        c=a+b;
        System.out.print(c);
        
    }
    static long Reverse(){
        String aux="";
        for(int i=B.length()-1; i>=0;i--)aux+=Character.toString(B.charAt(i));
        return Long.parseLong(aux);
    }
}