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
{
    public static void main(String[] args)
    {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        int b = in.nextInt();
        String wordB ="" + b;
        String reverseB = new StringBuffer(wordB).reverse().toString();
        int newB = (int)Integer.parseInt(reverseB);
        System.out.println(a+newB);
    }
}