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 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);

		int x = sc.nextInt();
		String y = sc.next();
		String temp = "";
		for(int z = y.length()-1; z > -1; z--)
			temp += y.charAt(z);
		
		
		int sum = x + Integer.parseInt(temp);
		
		System.out.print(sum);

	}

}