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 A_171_Mysterious_Numbers {
	public static void main(String[] args){
		Scanner input=new Scanner(System.in);
		String a=input.next();
		String b=input.next();
		String newb="";
		for(int i=0;i<b.length();i++){
			newb=b.charAt(i)+newb;
		}
		int aa=Integer.parseInt(a);
		int bb=Integer.parseInt(newb);
		int result=aa+bb;
		System.out.println(result);
	}
}