import 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 res = 0;
      	res = a > b ? a-- : b--;
        res += Math.max(a, b);
      	System.out.println(res);
    }
} import java.util.*; util.* java public class Main { 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
      	int b = sc.nextInt();
      	int res = 0;
      	res = a > b ? a-- : b--;
        res += Math.max(a, b);
      	System.out.println(res);
    }
} Main public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
      	int b = sc.nextInt();
      	int res = 0;
      	res = a > b ? a-- : b--;
        res += Math.max(a, b);
      	System.out.println(res);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
      	int b = sc.nextInt();
      	int res = 0;
      	res = a > b ? a-- : b--;
        res += Math.max(a, b);
      	System.out.println(res);
    } 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 res = 0; res 0 res = a > b ? a-- : b-- res a > b ? a-- : b-- a > b a b a-- a b-- b res += Math.max(a, b) res Math.max(a, b) Math.max Math a b System.out.println(res) System.out.println System.out System System.out res 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 res = 0;
      	res = a > b ? a-- : b--;
        res += Math.max(a, b);
      	System.out.println(res);
    }
} public class Main { 
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
      	int b = sc.nextInt();
      	int res = 0;
      	res = a > b ? a-- : b--;
        res += Math.max(a, b);
      	System.out.println(res);
    }
} Main
import 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 res = 0;
      	res = a > b ? a-- : b--;
        res += Math.max(a, b);
      	System.out.println(res);
    }
}