#include <bits/stdc++.h>
using namespace std;
int main() {
  const int TARGET = 1000000;
  map<int, int> sale;
  int n_data, id, amount, price, n_target;
  for (;;) {
    cin >> n_data;
    if (n_data == 0) break;
    for (int i = 0; i != n_data; ++i) {
      cin >> id >> price >> amount;
      sale[id] += price * amount;
    }
    map<int, int>::iterator it = sale.begin();
    n_target = 0;
    while (it != sale.end()) {
      if (it->second >= TARGET) {
        cout << it->first << endl;
        ++n_target;
      }
      ++it;
    }
    if (n_target == 0) cout << "NA" << endl;
    sale.clear();
  }
}
