import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();

        int sum = 0;

        for (int i=0; i<2; i++) {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        }

        System.out.println(sum);
    }
} import java.io.File; File java.io import java.io.FileInputStream; FileInputStream java.io import java.io.FileNotFoundException; FileNotFoundException java.io import java.util.*; util.* java public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();

        int sum = 0;

        for (int i=0; i<2; i++) {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        }

        System.out.println(sum);
    }
} Main public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();

        int sum = 0;

        for (int i=0; i<2; i++) {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        }

        System.out.println(sum);
    } main {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();

        int sum = 0;

        for (int i=0; i<2; i++) {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        }

        System.out.println(sum);
    } 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 sum = 0; sum 0 for (int i=0; i<2; i++) {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        } int i=0; int i=0; i 0 i<2 i 2 i++ i++ i {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        } {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        } if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            } a > b a b {
                sum += a;
                a--;
            } sum += a sum a a-- a {
                sum += b;
                b--;
            } sum += b sum b b-- b 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) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();

        int sum = 0;

        for (int i=0; i<2; i++) {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        }

        System.out.println(sum);
    }
} public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();

        int sum = 0;

        for (int i=0; i<2; i++) {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        }

        System.out.println(sum);
    }
} Main
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();

        int sum = 0;

        for (int i=0; i<2; i++) {
            if (a > b) {
                sum += a;
                a--;
            } else {
                sum += b;
                b--;
            }
        }

        System.out.println(sum);
    }
}
