#include <bits/stdc++.h>
using namespace std;

#define lli long long
#define endl '\n'
#define loop(i, n) for (int i = 0; i < n; i++)
#define pool(i, n) for (int i = n - 1; i >= 0; i--)
#define rep(i, a, b) for (int i = a; i <= b; i++)
#define per(i, b, a) for (int i = b; i >= a; i--)
#define all(a) (a).begin(), (a).end()
#define vint vector<int>
#define vlli vector<long long>
#define pint pair<int, int>
#define memfill(arr, val) memset(arr, val, sizeof(arr))

void solve()
{
    int n, k;
    cin >> n >> k;

    if (n % k != 0)
    {
        cout << -1 << endl;
        return;
    }

    int cnt = n / k;
    vint ans(n);
    for (int i = 0; i < cnt; i++)
        ans[i] = 1;
    for (int i = cnt; i < n; i++)
        ans[i] = 2;

    for (auto x : ans)
        cout << x << " ";
    cout << endl;
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);

    int t = 1;
    // cin >> t;

    while (t--)
    {
        solve();
    }

    return 0;
}