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.io.*;
import java.util.*;

public class MysteriousNumbers1 {
    public static void main(String[] args) throws IOException {
        BufferedReader f = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st = new StringTokenizer(f.readLine());
        long a1 = Long.parseLong(st.nextToken());
        String str = st.nextToken();
        String s = "";
        for (int i = str.length()-1; i >= 0; i--)
            s += str.charAt(i);
        System.out.println(a1+Long.parseLong(s));
    }   
}