#include <bits/stdc++.h>
using namespace std;
using i64 = long long;
using u64 = unsigned long long;
using u32 = unsigned;

void solve()
{
    int n, k;
    cin >> n >> k;
    if (n % k)
    {
        cout << -1 << endl;
    }
    else
    {
        int num = n / k;
        for (int i = 0; i < num; i++)
        {
            cout << 1 << ' ';
        }
        int cnt = 2;
        for (int i = 0; i < n - num; i++)
        {
            cout << cnt++ << ' ';
        }
        cout << endl;
    }
}

signed main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    solve();
    return 0;
}