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.Scanner;


public class MysteriousNumbers {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		new MysteriousNumbers().solve();
	}

	public void solve(){	
		Scanner in = new Scanner(System.in);
	    int one = in.nextInt();
	    int two = in.nextInt();
	    StringBuffer twoString = new StringBuffer(two+"");
	    twoString.reverse();
	    String twoStringBuilt = twoString.toString();
	    two = Integer.parseInt(twoStringBuilt);
		System.out.println(one+two);


	}



}