import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt(), B = sc.nextInt();
    System.out.println((A == B) ? A + B : Math.max(A, B) * 2 - 1);
  }
} import java.util.*; util.* java public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt(), B = sc.nextInt();
    System.out.println((A == B) ? A + B : Math.max(A, B) * 2 - 1);
  }
} Main public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt(), B = sc.nextInt();
    System.out.println((A == B) ? A + B : Math.max(A, B) * 2 - 1);
  } main {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt(), B = sc.nextInt();
    System.out.println((A == B) ? A + B : Math.max(A, B) * 2 - 1);
  } Scanner sc = new Scanner(System.in); sc new Scanner(System.in) int A = sc.nextInt() A sc.nextInt() sc.nextInt sc B = sc.nextInt(); B sc.nextInt() sc.nextInt sc System.out.println((A == B) ? A + B : Math.max(A, B) * 2 - 1) System.out.println System.out System System.out (A == B) ? A + B : Math.max(A, B) * 2 - 1 (A == B) A B A + B A B Math.max(A, B) * 2 - 1 Math.max(A, B) * 2 Math.max(A, B) Math.max Math A B 2 1 String[] args args public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt(), B = sc.nextInt();
    System.out.println((A == B) ? A + B : Math.max(A, B) * 2 - 1);
  }
} public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt(), B = sc.nextInt();
    System.out.println((A == B) ? A + B : Math.max(A, B) * 2 - 1);
  }
} Main
import java.util.*;

public class Main {
  public static void main(String[] args) {
    Scanner sc = new Scanner(System.in);
    int A = sc.nextInt(), B = sc.nextInt();
    System.out.println((A == B) ? A + B : Math.max(A, B) * 2 - 1);
  }
}