#include <bits/stdc++.h>
using namespace std;
int main() {
  ios::sync_with_stdio(false);
  int n, id, p, q;
  while (cin >> n && n) {
    map<int, int> ids;
    vector<pair<int, long long>> sum;
    for (int i = 0; i < n; ++i) {
      cin >> id >> p >> q;
      if (ids.count(id)) {
        sum[ids[id]].second += p * q;
      } else {
        sum.push_back(make_pair(id, p * q));
        ids[id] = sum.size() - 1;
      }
    }
    bool na = true;
    for (auto x : sum) {
      if (1000000 <= x.second) {
        cout << x.first << endl;
        na = false;
      }
    }
    if (na) {
      cout << "NA" << endl;
    }
  }
  return 0;
}
