#include <bits/stdc++.h>
using namespace std;
struct data {
  int id;
  long long int sales;
  data(int a, int b) : id(a), sales(b) {}
  bool operator<(const data& o) const { return id < o.id; }
};
int main() {
  int n;
  while (cin >> n, n) {
    vector<data> ls;
    for (int i = 0; i < n; i++) {
      int a, b, c;
      cin >> a >> b >> c;
      vector<data>::iterator it = ls.begin();
      for (; it != ls.end(); it++) {
        if (it->id == a) {
          it->sales += b * c;
          break;
        }
      }
      if (it == ls.end()) {
        ls.push_back(data(a, b * c));
      }
    }
    sort(ls.begin(), ls.end());
    bool exs = false;
    for (vector<data>::iterator it = ls.begin(); it != ls.end(); it++) {
      if (it->sales >= 1000000) {
        cout << it->id << endl;
        exs = true;
      }
    }
    if (!exs) {
      cout << "NA" << endl;
    }
  }
  return 0;
}
