#include <iostream>
#include <map>

using namespace std;

int main() {
    ios::sync_with_stdio(false);

    int n, id, p, q;
    while (cin >> n && n) {
        map<long long, long long> output;
        for (int i=0; i<n; ++i) {
            cin >> id >> p >> q;
            output[id] += p * q;
        }
        bool na = true;
        for (auto x : output) {
            if (1000000 <= x.second) {
                cout << x.first << endl;
                na = false;
            }
        }
        if (na) {
            cout << "NA" << endl;
        }
    }

    return 0;
}