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.Collections;
import java.util.Scanner;


public class MysteriousStuff {

	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub

		Scanner input = new Scanner(System.in);
		int n1= input.nextInt();
		String z = input.next();
		System.out.println((long)n1+Integer.parseInt(reverse(z)));
	}

	private static String reverse(String x){
		String p = "";
		for(int i=x.length()-1;i>=0;i--)p+=x.charAt(i);
	    return p;
	}
}