import 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 - 1);
        } else if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(B * 2 - 1);
        }
    }
} import java.util.*; util.* java 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 - 1);
        } else if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(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 - 1);
        } else if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(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 - 1);
        } else if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(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 - 1);
        } else if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(B * 2 - 1);
        } A > B A B {
          System.out.println(A * 2 - 1);
        } System.out.println(A * 2 - 1) System.out.println System.out System System.out A * 2 - 1 A * 2 A 2 1 if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(B * 2 - 1);
        } A == B A B {
          System.out.println(A * 2);
        } System.out.println(A * 2) System.out.println System.out System System.out A * 2 A 2 {
          System.out.println(B * 2 - 1);
        } System.out.println(B * 2 - 1) System.out.println System.out System System.out B * 2 - 1 B * 2 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 - 1);
        } else if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(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 - 1);
        } else if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(B * 2 - 1);
        }
    }
} Main
import 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 - 1);
        } else if (A == B) {
          System.out.println(A * 2);
        } else {
          System.out.println(B * 2 - 1);
        }
    }
}
