    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());;
    		int sum=0;
     
    		for(int i=0;i<2;i++){
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		}
    		System.out.println(sum);
    	}
     
    } 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());;
    		int sum=0;
     
    		for(int i=0;i<2;i++){
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		}
    		System.out.println(sum);
    	}
     
    } 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 sum=0;
     
    		for(int i=0;i<2;i++){
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		}
    		System.out.println(sum);
    	} main {
    		Scanner sc = new Scanner(System.in);
     
    		int a=Integer.parseInt(sc.next());
    		int b=Integer.parseInt(sc.next());;
    		int sum=0;
     
    		for(int i=0;i<2;i++){
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		}
    		System.out.println(sum);
    	} 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 sum=0; sum 0 for(int i=0;i<2;i++){
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		} int i=0; int i=0; i 0 i<2 i 2 i++ i++ i {
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		} {
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		} if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			} a>=b a b {
    				sum+=a;
    				a=a-1;
    			} sum+=a sum a a=a-1 a a-1 a 1 {
    				sum+=b;
    				b=b-1;
    			} sum+=b sum b b=b-1 b b-1 b 1 System.out.println(sum) System.out.println System.out System System.out sum 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 sum=0;
     
    		for(int i=0;i<2;i++){
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		}
    		System.out.println(sum);
    	}
     
    } 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 sum=0;
     
    		for(int i=0;i<2;i++){
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		}
    		System.out.println(sum);
    	}
     
    } 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());;
    		int sum=0;
     
    		for(int i=0;i<2;i++){
    			if(a>=b){
    				sum+=a;
    				a=a-1;
    			}else{
    				sum+=b;
    				b=b-1;
    			}
    		}
    		System.out.println(sum);
    	}
     
    }