import java.util.PriorityQueue;
import java.util.Scanner;
import java.util.Comparator;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    System.out.println((A>B)?A+A-1:(A==B)?A+B:B+B-1);
  }
} import java.util.PriorityQueue; PriorityQueue java.util import java.util.Scanner; Scanner java.util import java.util.Comparator; Comparator java.util public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    System.out.println((A>B)?A+A-1:(A==B)?A+B:B+B-1);
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    System.out.println((A>B)?A+A-1:(A==B)?A+B:B+B-1);
  } main {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    System.out.println((A>B)?A+A-1:(A==B)?A+B:B+B-1);
  } 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 System.out.println((A>B)?A+A-1:(A==B)?A+B:B+B-1) System.out.println System.out System System.out (A>B)?A+A-1:(A==B)?A+B:B+B-1 (A>B) A B A+A-1 A+A A A 1 (A==B)?A+B:B+B-1 (A==B) A B A+B A B B+B-1 B+B B B 1 String[] args args public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    System.out.println((A>B)?A+A-1:(A==B)?A+B:B+B-1);
  }
} public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    System.out.println((A>B)?A+A-1:(A==B)?A+B:B+B-1);
  }
} Main
import java.util.PriorityQueue;
import java.util.Scanner;
import java.util.Comparator;
public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B = sc.nextInt();
    System.out.println((A>B)?A+A-1:(A==B)?A+B:B+B-1);
  }
}