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

import static java.lang.Math.*;

public class Main {
    public static void main(String[] args) throws IOException {
        FastScanner sc2 = new FastScanner(System.in);
        PrintWriter pw2 = new PrintWriter(System.out);
        pw2.print(sc2.nextLong() + sc2.nextLong());
        pw2.close();
    }
}

class FastScanner {
    BufferedReader br;
    StringTokenizer st = new StringTokenizer("");

    public FastScanner(InputStream inputStream) throws FileNotFoundException {
        br = new BufferedReader(new InputStreamReader(inputStream));
    }

    public FastScanner(String file) throws FileNotFoundException {
        br = new BufferedReader(new FileReader(file));
    }

    public String next() throws IOException {
        while (!st.hasMoreTokens())
            st = new StringTokenizer(br.readLine());
        return st.nextToken();
    }

    public int nextInt() throws IOException {
        return Integer.parseInt(next());
    }

    public double nextDouble() throws IOException {
        return Double.parseDouble(next());
    }

    public long nextLong() throws IOException {
        return Long.parseLong(next());
    }
}