import java.util.Scanner;

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());

        if (a == b)
            System.out.println(a * 2);
        else
            System.out.println(Math.max(a, b) * 2 - 1);
    }
} import java.util.Scanner; Scanner 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());

        if (a == b)
            System.out.println(a * 2);
        else
            System.out.println(Math.max(a, b) * 2 - 1);
    }
} 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());

        if (a == b)
            System.out.println(a * 2);
        else
            System.out.println(Math.max(a, b) * 2 - 1);
    } main {
        Scanner sc = new Scanner(System.in);

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

        if (a == b)
            System.out.println(a * 2);
        else
            System.out.println(Math.max(a, b) * 2 - 1);
    } 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 if (a == b)
            System.out.println(a * 2);
        else
            System.out.println(Math.max(a, b) * 2 - 1); a == b a b System.out.println(a * 2) System.out.println System.out System System.out a * 2 a 2 System.out.println(Math.max(a, b) * 2 - 1) System.out.println System.out System System.out 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 = Integer.parseInt(sc.next());
        int b = Integer.parseInt(sc.next());

        if (a == b)
            System.out.println(a * 2);
        else
            System.out.println(Math.max(a, b) * 2 - 1);
    }
} 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());

        if (a == b)
            System.out.println(a * 2);
        else
            System.out.println(Math.max(a, b) * 2 - 1);
    }
} Main
import java.util.Scanner;

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());

        if (a == b)
            System.out.println(a * 2);
        else
            System.out.println(Math.max(a, b) * 2 - 1);
    }
}