import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int result = 0;
        if(a==b){
            result = 2*a;
        }
        else{
            result = Math.max(a, b)*2-1;
        }
        System.out.println(result);
    }
} import java.util.*; util.* java public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int result = 0;
        if(a==b){
            result = 2*a;
        }
        else{
            result = Math.max(a, b)*2-1;
        }
        System.out.println(result);
    }
} Main public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int result = 0;
        if(a==b){
            result = 2*a;
        }
        else{
            result = Math.max(a, b)*2-1;
        }
        System.out.println(result);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int result = 0;
        if(a==b){
            result = 2*a;
        }
        else{
            result = Math.max(a, b)*2-1;
        }
        System.out.println(result);
    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = sc.nextInt(); a sc.nextInt() sc.nextInt sc int b = sc.nextInt(); b sc.nextInt() sc.nextInt sc int result = 0; result 0 if(a==b){
            result = 2*a;
        }
        else{
            result = Math.max(a, b)*2-1;
        } a==b a b {
            result = 2*a;
        } result = 2*a result 2*a 2 a {
            result = Math.max(a, b)*2-1;
        } result = Math.max(a, b)*2-1 result Math.max(a, b)*2-1 Math.max(a, b)*2 Math.max(a, b) Math.max Math a b 2 1 System.out.println(result) System.out.println System.out System System.out result String[] args args public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int result = 0;
        if(a==b){
            result = 2*a;
        }
        else{
            result = Math.max(a, b)*2-1;
        }
        System.out.println(result);
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int result = 0;
        if(a==b){
            result = 2*a;
        }
        else{
            result = Math.max(a, b)*2-1;
        }
        System.out.println(result);
    }
} Main
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int result = 0;
        if(a==b){
            result = 2*a;
        }
        else{
            result = Math.max(a, b)*2-1;
        }
        System.out.println(result);
    }
}