import java.util.Scanner;

public class Solution {
    private static boolean isPentagonal(long x) {
        long n = (long) ((1 + Math.sqrt(24 * x + 1)) / 6);
        long p_n = n * (3 * n - 1) / 2;
        return p_n == x;
    }

    public static void main(String[] args) {
        try (Scanner sc = new Scanner(System.in)) {
            int N = sc.nextInt();
            int K = sc.nextInt();
            for(long n = K + 1; n <= N; n++) {
                long p_n = n * (3 * n - 1) / 2;
                long p_x = (n - K) * (3 * (n - K) - 1) / 2;
                long sum = p_n + p_x;
                long difference = p_n - p_x;
                if(isPentagonal(sum) || isPentagonal(difference)) {
                    System.out.println(p_n);
                }
            }
        }
    }
}