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.math.BigInteger;
import java.util.Arrays;
import java.util.Comparator;
import java.util.LinkedList;


public class Main{
    public static void main(String[] ar) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringBuilder sb = new StringBuilder();
        
        String[] s  = ti(br);
        int n = pi(s[0]);
        int m = pi(s[1]);
        
        System.out.println(n+m);
       
        //System.out.println(c);
    }
    
    public static String[] ti(BufferedReader br) throws IOException{
        return br.readLine().split(" ");
    }
    
    public static int pi(String s){
        return Integer.parseInt(s);
    }
}