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.math.BigInteger;
import java.util.Scanner;

public class Main{

	public static void main(String[] args) {
		Scanner scan = new Scanner(System.in);
		String a=scan.next();
		String b=scan.next();
		int max=Math.max(a.length(), b.length());
		String w="";
		String p="";
		for (int i = b.length()-1; i>=0; i--) {
			p+=b.charAt(i);
		}
		BigInteger num1=new BigInteger(a);
		BigInteger num2=new BigInteger(p);
		System.out.println(num1.add(num2));
	}
}