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.math.BigInteger;
import java.util.Scanner;

public class Main {

    void run(){
        Scanner scan=new Scanner(System.in);
        String a=scan.next();
        String b=scan.next();
        String c=""; 
        for(int i=b.length()-1;i>=0;i--)
            c+=b.substring(i,i+1);
        BigInteger nb=new BigInteger(c);
        BigInteger na=new BigInteger(a);
        System.out.println(nb.add(na));
    }
    public static void main(String[] args) {
        new Main().run();

    }

}