import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

//幸运数
public class Demo08 {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int m = sc.nextInt();
List<Integer> list = new ArrayList<>();
for (int i = 1; i < m; i++) {
list.add(new Integer(i));
}
int luck = 2;
int k = 1;
List<Integer> remove = new ArrayList<>();
while (luck<=list.size()){
int cnt = 0;
for (int i = luck; i < list.size(); i++) {
if (i%luck==0){
remove.add(i);
}
}