#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  while (cin >> n) {
    if (n == 0) {
      break;
    }
    map<int, int> m;
    for (int i = 0; i < n; i++) {
      int id, price, amount;
      cin >> id >> price >> amount;
      m[id] += price * amount;
    }
    bool applicable = false;
    for (map<int, int>::iterator itr = m.begin(); itr != m.end(); itr++) {
      if (itr->second >= 1000000) {
        applicable = true;
        cout << itr->first << endl;
      }
    }
    if (!applicable) {
      cout << "NA" << endl;
    }
  }
  return 0;
}
