import java.util.*;
public class Main {
public static void main(String[] args){

    Scanner sc = new Scanner(System.in);
	// 整数の入力
	int a = sc.nextInt();

  
     int b = sc.nextInt();
  		int  answer  = 0;
       
  		for (int i = 0; i< 2 ; i++){
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        }
  
  		System.out.println(answer);
  		
	}
} import java.util.*; util.* java public class Main {
public static void main(String[] args){

    Scanner sc = new Scanner(System.in);
	// 整数の入力
	int a = sc.nextInt();

  
     int b = sc.nextInt();
  		int  answer  = 0;
       
  		for (int i = 0; i< 2 ; i++){
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        }
  
  		System.out.println(answer);
  		
	}
} Main public static void main(String[] args){

    Scanner sc = new Scanner(System.in);
	// 整数の入力
	int a = sc.nextInt();

  
     int b = sc.nextInt();
  		int  answer  = 0;
       
  		for (int i = 0; i< 2 ; i++){
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        }
  
  		System.out.println(answer);
  		
	} main {

    Scanner sc = new Scanner(System.in);
	// 整数の入力
	int a = sc.nextInt();

  
     int b = sc.nextInt();
  		int  answer  = 0;
       
  		for (int i = 0; i< 2 ; i++){
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        }
  
  		System.out.println(answer);
  		
	} 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  answer  = 0; answer 0 for (int i = 0; i< 2 ; i++){
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        } int i = 0; int i = 0; i 0 i< 2 i 2 i++ i++ i {
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        } {
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        } if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            } a >= b a b {
               answer += a;
               a--;
            } answer += a answer a a-- a if(a < b ){
            	answer += b;
                b--;
            } a < b a b {
            	answer += b;
                b--;
            } answer += b answer b b-- b System.out.println(answer) System.out.println System.out System System.out answer String[] args args public class Main {
public static void main(String[] args){

    Scanner sc = new Scanner(System.in);
	// 整数の入力
	int a = sc.nextInt();

  
     int b = sc.nextInt();
  		int  answer  = 0;
       
  		for (int i = 0; i< 2 ; i++){
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        }
  
  		System.out.println(answer);
  		
	}
} public class Main {
public static void main(String[] args){

    Scanner sc = new Scanner(System.in);
	// 整数の入力
	int a = sc.nextInt();

  
     int b = sc.nextInt();
  		int  answer  = 0;
       
  		for (int i = 0; i< 2 ; i++){
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        }
  
  		System.out.println(answer);
  		
	}
} Main
import java.util.*;
public class Main {
public static void main(String[] args){

    Scanner sc = new Scanner(System.in);
	// 整数の入力
	int a = sc.nextInt();

  
     int b = sc.nextInt();
  		int  answer  = 0;
       
  		for (int i = 0; i< 2 ; i++){
        	if(a >= b){
               answer += a;
               a--;
            }else if(a < b ){
            	answer += b;
                b--;
            }
        }
  
  		System.out.println(answer);
  		
	}
}
