A + B is often used as an example of the easiest problem possible to show some contest platform. However, some scientists have observed that sometimes this problem is not so easy to get accepted. Want to try?

Input

The input contains two integers a and b (0 ≤ a, b ≤ 103), separated by a single space.

Output

Output the sum of the given integers.

Examples

Input

5 14


Output

19


Input

381 492


Output

873
import java.util.*;
import java.lang.*;
import java.io.*;
import static java.lang.Math.*;

public class Main {
    static class Reader {
        private BufferedReader br;
        private StringTokenizer token;
        protected Reader(FileReader obj) {
            br = new BufferedReader(obj, 32768);
            token = null;
        }
        protected Reader() {
            br = new BufferedReader(new InputStreamReader(System.in), 32768);
            token = null;
        }
        protected String next() {
            while(token == null || !token.hasMoreTokens()) {
                try {
                    token = new StringTokenizer(br.readLine());
                } catch (Exception e) {e.printStackTrace();}
            } return token.nextToken();
        }
        protected int nextInt() {return Integer.parseInt(next());}
        // protected long nextLong() {return Long.parseLong(next());}
        // protected double nextDouble() {return Double.parseDouble(next());}
    }
    public static void main(String[] args) throws IOException {
        Reader in = new Reader();
        PrintWriter out = new PrintWriter(System.out);
        out.printf("%d\n", in.nextInt()+in.nextInt());
        out.close();
    }
}