

import java.util.Scanner;

public class Main {

    public static void main(final String[] args) {

        try (final Scanner sc = new Scanner(System.in)) {
            int a = sc.nextInt();
            int b = sc.nextInt();
            int result = 0;
            if (a > b) {
                result += a + (a - 1);
            } else if (b > a) {
                result += b + (b - 1);
            } else {
                result += a + b;
            }
            System.out.println(result);
        }
    }
}

/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz