import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;

public class Solution {

    public static void main(String[] args) {
        /* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
        Scanner sc = new Scanner(System.in);
        long no1 = sc.nextLong();
        long no2 = sc.nextLong();
        
        long count = 0;
        while(no1!=1)
        {
            no1 = no1-1;
            count++;
        }
        while(no2!=1)
        {
            no2 = no2-1;
            count++;
        }
        System.out.println(count);
        
    }
}