#include <iostream>
#include <vector>

using namespace std;

int main(void)
{
    int k; cin >> k;
    int n; cin >> n;

    vector<int> val;
    vector<int> cnt;

    while(n--) {
        int x; cin >> x;

        if (!val.empty() && val.back() == x) {
            cnt.back()++;
        } else if (!val.empty() && cnt.back() >= k) { // val.back() != x
            val.pop_back();
            cnt.pop_back();
            if (!val.empty() && val.back() == x) {
                cnt.back()++;
            } else {
                val.push_back(x);
                cnt.push_back(1);
            }
        } else { // val.empty() || val.back() != x || cnt.back() < k
            val.push_back(x);
            cnt.push_back(1);
        }
    }
    if (!val.empty() && cnt.back() >= k) {
        val.pop_back();
        cnt.pop_back();
    }

    for (int i = 0; i < val.size(); i++) {
        for (int j = 0; j < cnt[i]; j++) {
            cout << val[i] << " ";
        }
    }
    cout << endl;

    return 0;
}