import java.util.Scanner;

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

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