#include <bits/stdc++.h>
using namespace std;
int main() {
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n;
  map<int, long> mp;
  vector<int> vec;
  while (cin >> n && n != 0) {
    for (int i = 0; i < n; i++) {
      int id;
      long p, q;
      cin >> id >> p >> q;
      mp[id] += p * q;
    }
    for (auto m : mp)
      if (m.second >= 1000000) vec.push_back(m.first);
    if (vec.size() == 0)
      cout << "NA" << endl;
    else {
      for (auto v : vec) cout << v << endl;
    }
    mp.clear();
    vec.clear();
  }
  return EXIT_SUCCESS;
}
