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 Main {


	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String c=scan.next();
		String t=scan.next();
		String temp="";
		for (int i = t.length()-1; i >=0; i--) {
			temp+=t.charAt(i)+"";
		}
		System.out.println(Integer.parseInt(c)+Integer.parseInt(temp));

	}

}