Problem: Levko loves permutations very much. A permutation of length n is a sequence of distinct positive integers, each is at most n.

Let’s assume that value gcd(a, b) shows the greatest common divisor of numbers a and b. Levko assumes that element pi of permutation p1, p2, ... , pn is good if gcd(i, pi) > 1. Levko considers a permutation beautiful, if it has exactly k good elements. Unfortunately, he doesn’t know any beautiful permutation. Your task is to help him to find at least one of them.

Input

The single line contains two integers n and k (1 ≤ n ≤ 105, 0 ≤ k ≤ n).

Output

In a single line print either any beautiful permutation or -1, if such permutation doesn’t exist.

If there are multiple suitable permutations, you are allowed to print any of them.

Examples

Input

4 2


Output

2 4 3 1

Input

1 1


Output

-1

Note

In the first sample elements 4 and 3 are good because gcd(2, 4) = 2 > 1 and gcd(3, 3) = 3 > 1. Elements 2 and 1 are not good because gcd(1, 2) = 1 and gcd(4, 1) = 1. As there are exactly 2 good elements, the permutation is beautiful.

The second sample has no beautiful permutations.

Solution (in JAVA):

Solution:
import java.util.*;
/**
 *
 * @author mohanad
 */
public class Div2_361B {


    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = scan.nextInt();
        int k = scan.nextInt();
        
        if (k==n){
            System.out.println(-1);
        }
        else {
            int arr[]= new int [n+1];
            for (int i = 1 ; i <=n ; ++i)
                arr[i]=i;
            int count =n-1;
            int j =2;
            if ((count-k)%2!=0){
                j=1;
                ++count;
            }
            while (count > k && j<n){
                int tmp =arr[j];
                arr[j]=arr[j+1];
                arr[j+1]=tmp;
                count-=2;
                j+=2;
            }
            for (int i = 1 ; i <=n ; ++i)
                System.out.print(arr[i] + " ");
        }
    }
    
}