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 CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;
void solve() {
  int n, k, cnt = 0;
  cin >> n >> k;
  if (n == 1 or k == n) {
    if (k == 0)
      cout << 1;
    else
      cout << -1;
    return;
  }
  vector<int> v(n);
  for (int i = 0; i < n; i++) {
    v[i] = i + 1;
  }
  if ((n - k) & 1) {
    for (int i = 1; i < n - k; i++) {
      swap(v[i], v[i + 1]);
      i++;
    }
  } else {
    for (int i = 0; i < n - k; i++) {
      swap(v[i], v[i + 1]);
      i++;
    }
  }
  for (int i = 0; i < n; i++) {
    cout << v[i] << ' ';
  }
}
int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  cout.tie(0);
  ;
  int t = 1;
  while (t--) {
    solve();
    cout << '\n';
  }
  return 0;
}