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 Template implements Runnable {

    BufferedReader in;
    PrintWriter out;
    StringTokenizer tok = new StringTokenizer("");

    void init() throws FileNotFoundException {
        try {
            in = new BufferedReader(new FileReader("input.txt"));
            out = new PrintWriter("output.txt");
        } catch (Exception e) {
            in = new BufferedReader(new InputStreamReader(System.in));
            out = new PrintWriter(System.out);
        }
    }

    class GraphBuilder {
        int n, m;
        int[] x, y;
        int index;
        int[] size;


        GraphBuilder(int n, int m) {
            this.n = n;
            this.m = m;
            x = new int[m];
            y = new int[m];
            size = new int[n];
        }

        void add(int u, int v) {
            x[index] = u;
            y[index] = v;
            size[u]++;
            size[v]++;
            index++;
        }

        int[][] build() {
            int[][] graph = new int[n][];
            for (int i = 0; i < n; i++) {
                graph[i] = new int[size[i]];
            }
            for (int i = index - 1; i >= 0; i--) {
                int u = x[i];
                int v = y[i];
                graph[u][--size[u]] = v;
                graph[v][--size[v]] = u;
            }
            return graph;
        }
    }

    String readString() throws IOException {
        while (!tok.hasMoreTokens()) {
            try {
                tok = new StringTokenizer(in.readLine());
            } catch (Exception e) {
                return null;
            }
        }
        return tok.nextToken();
    }

    int readInt() throws IOException {
        return Integer.parseInt(readString());
    }

    int[] readIntArray(int size) throws IOException {
        int[] res = new int[size];
        for (int i = 0; i < size; i++) {
            res[i] = readInt();
        }
        return res;
    }

    long[] readLongArray(int size) throws IOException {
        long[] res = new long[size];
        for (int i = 0; i < size; i++) {
            res[i] = readLong();
        }
        return res;
    }

    long readLong() throws IOException {
        return Long.parseLong(readString());
    }

    double readDouble() throws IOException {
        return Double.parseDouble(readString());
    }

    <T> List<T>[] createGraphList(int size) {
        List<T>[] list = new List[size];
        for (int i = 0; i < size; i++) {
            list[i] = new ArrayList<>();
        }
        return list;
    }

    public static void main(String[] args) {
        new Template().run();
        // new Thread(null, new Template(), "", 1l * 200 * 1024 * 1024).start();
    }

    long timeBegin, timeEnd;

    void time() {
        timeEnd = System.currentTimeMillis();
        System.err.println("Time = " + (timeEnd - timeBegin));
    }

    long memoryTotal, memoryFree;

    void memory() {
        memoryFree = Runtime.getRuntime().freeMemory();
        System.err.println("Memory = " + ((memoryTotal - memoryFree) >> 10)
                + " KB");
    }

    public void run() {
        try {
            timeBegin = System.currentTimeMillis();
            memoryTotal = Runtime.getRuntime().freeMemory();
            init();
            solve();
            out.close();
            if (System.getProperty("ONLINE_JUDGE") == null) {
                time();
                memory();
            }
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(-1);
        }
    }


    void brut(int[] a, int pos) {
        if (a.length == pos) {
            for (int i = 0; i < a.length; i++) {
                if (a[a[i]] != a.length - 1 - i) return;
            }
            System.err.println(Arrays.toString(a));
            return;
        }
        for (int i = pos; i < a.length; i++) {
            int t = a[i];
            a[i] = a[pos];
            a[pos] = t;
            brut(a, pos + 1);
            t = a[i];
            a[i] = a[pos];
            a[pos] = t;
        }
    }

    void solve() throws IOException {
//        while (true) {
//            String s = readString();
//            if (s == null) break;
//            out.println("list.add(\"" + s + "\");");
//        }
        ArrayList<String> list = new ArrayList<>();
        list.add("111111101010101111100101001111111");
        list.add("100000100000000001010110001000001");
        list.add("101110100110110000011010001011101");
        list.add("101110101011001001111101001011101");
        list.add("101110101100011000111100101011101");
        list.add("100000101010101011010000101000001");
        list.add("111111101010101010101010101111111");
        list.add("000000001111101111100111100000000");
        list.add("100010111100100001011110111111001");
        list.add("110111001111111100100001000101100");
        list.add("011100111010000101000111010001010");
        list.add("011110000110001111110101100000011");
        list.add("111111111111111000111001001011000");
        list.add("111000010111010011010011010100100");
        list.add("101010100010110010110101010000010");
        list.add("101100000101010001111101000000000");
        list.add("000010100011001101000111101011010");
        list.add("101001001111101111000101010001110");
        list.add("101101111111000100100001110001000");
        list.add("000010011000100110000011010000010");
        list.add("001101101001101110010010011011000");
        list.add("011101011010001000111101010100110");
        list.add("111010100110011101001101000001110");
        list.add("110001010010101111000101111111000");
        list.add("001000111011100001010110111110000");
        list.add("000000001110010110100010100010110");
        list.add("111111101000101111000110101011010");
        list.add("100000100111010101111100100011011");
        list.add("101110101001010000101000111111000");
        list.add("101110100011010010010111111011010");
        list.add("101110100100011011110110101110000");
        list.add("100000100110011001111100111100000");
        list.add("111111101101000101001101110010001");
        out.println(list.get(readInt()).charAt(readInt()));


    }


}