import 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();
    int result = 0;
    for(int i=0; i<2; i++){
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    }
    System.out.println(result);
  }
} import java.util.*; util.* java public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int result = 0;
    for(int i=0; i<2; i++){
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    }
    System.out.println(result);
  }
} Main public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int result = 0;
    for(int i=0; i<2; i++){
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    }
    System.out.println(result);
  } main {
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int result = 0;
    for(int i=0; i<2; i++){
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 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 for(int i=0; i<2; i++){
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    } int i=0; int i=0; i 0 i<2 i 2 i++ i++ i {
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    } {
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    } if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      } a>b a b {
        result += a;
        a -= 1;
      } result += a result a a -= 1 a 1 {
        result += b;
        b -= 1;
      } result += b result b b -= 1 b 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){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int result = 0;
    for(int i=0; i<2; i++){
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    }
    System.out.println(result);
  }
} public class Main{
  public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    int a = sc.nextInt();
    int b = sc.nextInt();
    int result = 0;
    for(int i=0; i<2; i++){
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    }
    System.out.println(result);
  }
} Main
import 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();
    int result = 0;
    for(int i=0; i<2; i++){
      if(a>b){
        result += a;
        a -= 1;
      }else{
        result += b;
        b -= 1;
      }
    }
    System.out.println(result);
  }
}