
import java.util.Scanner;

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

        System.out.println(get(a, b) + get(a, b));
    }

    private static int get(final int[] a, final int[] b) {
        if (a[0] > b[0]) {
            return a[0]--;
        }

        return b[0]--;
    }
}

/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