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.io.*;
import java.util.*;

public class Solution {
    public static void main (String[] args) throws IOException {
        boolean online = "true".equals(System.getProperty("ONLINE_JUDGE"));
        if (online) {
            in = new InputReader(new InputStreamReader(System.in));
            out = new PrintWriter(System.out);
        }
        else {
            in = new InputReader(new FileReader("input.txt"));
            out = new PrintWriter(new File("output.txt"));
        }
        
        new Solution().run();
        
        out.close();
    }
    
    private void run () {
        char[] s = ("111111101010101111100101001111111" +
                "100000100000000001010110001000001" +
                "101110100110110000011010001011101" +
                "101110101011001001111101001011101" +
                "101110101100011000111100101011101" +
                "100000101010101011010000101000001" +
                "111111101010101010101010101111111" +
                "000000001111101111100111100000000" +
                "100010111100100001011110111111001" +
                "110111001111111100100001000101100" +
                "011100111010000101000111010001010" +
                "011110000110001111110101100000011" +
                "111111111111111000111001001011000" +
                "111000010111010011010011010100100" +
                "101010100010110010110101010000010" +
                "101100000101010001111101000000000" +
                "000010100011001101000111101011010" +
                "101001001111101111000101010001110" +
                "101101111111000100100001110001000" +
                "000010011000100110000011010000010" +
                "001101101001101110010010011011000" +
                "011101011010001000111101010100110" +
                "111010100110011101001101000001110" +
                "110001010010101111000101111111000" +
                "001000111011100001010110111110000" +
                "000000001110010110100010100010110" +
                "111111101000101111000110101011010" +
                "100000100111010101111100100011011" +
                "101110101001010000101000111111000" +
                "101110100011010010010111111011010" +
                "101110100100011011110110101110000" +
                "100000100110011001111100111100000" +
                "111111101101000101001101110010001").toCharArray();
        int x = in.nextInt(),
            y = in.nextInt();
        out.println(s[x*33+y]);
    }
    
    private static InputReader in;
    private static PrintWriter out;
}

class InputReader {
    public InputReader (Reader r) {
        buff = new BufferedReader(r);
        try {
            str = new StringTokenizer(buff.readLine());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    
    public String next () {
        while (!str.hasMoreTokens())
            try {
                str = new StringTokenizer(buff.readLine());
            } catch (IOException e) {
                e.printStackTrace();
            }
        return str.nextToken();
    }
    
    public int nextInt () {
        return Integer.parseInt(this.next());
    }
    
    public long nextLong () {
        return Long.parseLong(this.next());
    }
    
    private static BufferedReader buff;
    private static StringTokenizer str;
}