#include <iostream>
#include <map>

using namespace std;

struct score {
    int points;
    int time;
};

class srt {
public:
    bool operator()(const score &a, const score &b) {
        if (a.points == b.points)
            return a.time > b.time;
        else
            return a.points > b.points;
    }
};

int main() {
    int m, n;
    cin >> m >> n;
    map<string, string, srt> table;
    for (size_t i = 0; i < n; i++) {
        string s;
        score x{};
        if (table[s].points < x.points) {
            x.time = i;
            table[s] = x;
        }
    }
    for (auto item : table) {
        cout << item.first << "\n";
    }
    return 0;
}