/* -*- coding: utf-8 -*-
 *
 * 2870.cc:  No.2870 Dice Making - yukicoder
 */

#include<cstdio>
#include<algorithm>

using namespace std;

/* main */

int main() {
  int n, k;
  scanf("%d%d", &n, &k);

  if (n % k) puts("-1");
  else {
    int m = n / k;
    for (int i = 0; i < n; i++)
      printf("%d%c", (i < m) ? 1 : 2, (i + 1 < n) ? ' ' : '\n');
  }

  return 0;
}