import java.util.*;

public class Main{
    public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);

      int a = Integer.parseInt(sc.next());
      int b = Integer.parseInt(sc.next());

      int ans = 0;

for(int i=1;i<=2;i++){
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
}


      System.out.println(ans);

    }
} import java.util.*; util.* java public class Main{
    public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);

      int a = Integer.parseInt(sc.next());
      int b = Integer.parseInt(sc.next());

      int ans = 0;

for(int i=1;i<=2;i++){
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
}


      System.out.println(ans);

    }
} Main public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);

      int a = Integer.parseInt(sc.next());
      int b = Integer.parseInt(sc.next());

      int ans = 0;

for(int i=1;i<=2;i++){
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
}


      System.out.println(ans);

    } main {
      Scanner sc = new Scanner(System.in);

      int a = Integer.parseInt(sc.next());
      int b = Integer.parseInt(sc.next());

      int ans = 0;

for(int i=1;i<=2;i++){
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
}


      System.out.println(ans);

    } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int a = Integer.parseInt(sc.next()); a Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int b = Integer.parseInt(sc.next()); b Integer.parseInt(sc.next()) Integer.parseInt Integer sc.next() sc.next sc int ans = 0; ans 0 for(int i=1;i<=2;i++){
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
} int i=1; int i=1; i 1 i<=2 i 2 i++ i++ i {
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
} {
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
} if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     } a>=b a b {
       ans += a;
       a = a-1;
      } ans += a ans a a = a-1 a a-1 a 1 {
       ans += b;
       b = b-1;
     } ans += b ans b b = b-1 b b-1 b 1 System.out.println(ans) System.out.println System.out System System.out ans String[] args args public class Main{
    public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);

      int a = Integer.parseInt(sc.next());
      int b = Integer.parseInt(sc.next());

      int ans = 0;

for(int i=1;i<=2;i++){
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
}


      System.out.println(ans);

    }
} public class Main{
    public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);

      int a = Integer.parseInt(sc.next());
      int b = Integer.parseInt(sc.next());

      int ans = 0;

for(int i=1;i<=2;i++){
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
}


      System.out.println(ans);

    }
} Main
import java.util.*;

public class Main{
    public static void main(String[] args) {
      Scanner sc = new Scanner(System.in);

      int a = Integer.parseInt(sc.next());
      int b = Integer.parseInt(sc.next());

      int ans = 0;

for(int i=1;i<=2;i++){
      if(a>=b){
       ans += a;
       a = a-1;
      }
      else{
       ans += b;
       b = b-1;
     }
}


      System.out.println(ans);

    }
}
