import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {

        Scanner sc = new Scanner(System.in);
        String a = sc.next();
        String b = sc.next();
        
        String ans = "";
        if(a.equals("0")){
            ans = b;
        }else if(b.charAt(0) == '-'){
            ans = String.valueOf(Integer.parseInt(a) + Integer.parseInt(b));
        }else{
            ans = a + b;
        }
        
        System.out.println(ans);
    }
}