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 Mysterious{
        
    public static void main( String [] args ){      
        Scanner cin = new Scanner( System.in );
        String a = "", b = "";
        a = cin.next();
        b = cin.next();
        StringBuilder sb = new StringBuilder( b );
        b = sb.reverse().toString();
        System.out.println( String.valueOf( Integer.parseInt(a) + Integer.parseInt(b) ) );
    }
}