Sequence

import java.util.*;

public class Sequence {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        String[] input = sc.nextLine().split(" ");

        int k = Integer.parseInt(input[0]);
        int n = Integer.parseInt(input[1]);

        Queue<Integer> queue = new ArrayDeque<>();
        int count = 0;
        queue.offer(k);
        int number = k;
        for (int i = 1; i < n; i++) {
            count++;
            if (count == 1) {
                queue.offer(queue.peek() + 1);
                number = queue.peek() + 1;
            }
            if (count == 2){
                queue.offer((2* queue.peek()) + 1);
                number = (2* queue.peek()) + 1;
            }
            if(count == 3){
                queue.offer(queue.peek() + 2);
                number = queue.poll() + 2;
                count = 0;
            }
        }
        System.out.println(number);
    }
}