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.ArrayList;
import java.util.Scanner;


public class MagicNumbers {

    /**
     * @param args
     */
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        long a = scanner.nextLong();
        long b = scanner.nextLong();
        
        ArrayList<Integer> aList = new ArrayList<Integer>();
        ArrayList<Integer> bList = new ArrayList<Integer>();
        
        if (a == 0) aList.add(0);
        if (b == 0) bList.add(0);
        
        long bRev = 0; 
        
        while(b > 0){
            bRev *= 10;
            bRev += b%10;
            b /= 10;
        }
        
        System.out.println(a+bRev);
        
    }

}