import java.util.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int k = sc.nextInt();
        ArrayList<Integer> list = new ArrayList<Integer>();
        for(int i = n-1; i >= 0; i -= k+1) {
            list.add(i);
        }
        
        for(int i = list.size()-1; i >= 0; i--) {
            System.out.println(list.get(i));
            int in = sc.nextInt();
            if(in >= n) break;
        }
        
        
    }
}