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 coin=0;
    
    for(int i=0;i<2;i++){
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  }System.out.println(coin);
}
}
 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 coin=0;
    
    for(int i=0;i<2;i++){
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  }System.out.println(coin);
}
} Main public static void main(String[] args ) throws Exception {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B=  sc.nextInt();
    int coin=0;
    
    for(int i=0;i<2;i++){
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  }System.out.println(coin);
} main {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt();
    int B=  sc.nextInt();
    int coin=0;
    
    for(int i=0;i<2;i++){
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  }System.out.println(coin);
} 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 coin=0; coin 0 for(int i=0;i<2;i++){
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  } int i=0; int i=0; i 0 i<2 i 2 i++ i++ i {
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  } {
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  } if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    } A>B A B {
      coin+=A;
       A-=1;
     } coin+=A coin A A-=1 A 1 {
        coin+=B;
       B-=1;
    } coin+=B coin B B-=1 B 1 System.out.println(coin) System.out.println System.out System System.out coin 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 coin=0;
    
    for(int i=0;i<2;i++){
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  }System.out.println(coin);
}
} 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 coin=0;
    
    for(int i=0;i<2;i++){
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  }System.out.println(coin);
}
} 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 coin=0;
    
    for(int i=0;i<2;i++){
     if(A>B){
      coin+=A;
       A-=1;
     }else{
        coin+=B;
       B-=1;
    }
  }System.out.println(coin);
}
}

