#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, k;
  cin >> n >> k;
  int a[n + 1];
  int c;
  for (int i = 0; i <= n; i++) a[i] = i;
  if (k == n)
    cout << -1;
  else {
    for (int i = 1; i < (n - k); i++) {
      c = a[i];
      a[i] = a[i + 1];
      a[i + 1] = c;
    }
    for (int i = 1; i <= n; i++) cout << a[i] << " ";
  }
  return 0;
}
