#include <bits/stdc++.h>
using namespace std;
int main() {
  while (true) {
    int n;
    cin >> n;
    if (n == 0) break;
    vector<int> number;
    vector<int> score;
    for (int i = 0; i < n; i++) {
      int input_number;
      int tanka;
      int kazu;
      cin >> input_number >> tanka >> kazu;
      for (int j = 0; j <= number.size(); j++) {
        if (j != number.size()) {
          if (number[j] == input_number) {
            score[j] += tanka * kazu;
            break;
          }
        } else {
          number.push_back(input_number);
          score.push_back(tanka * kazu);
          break;
        }
      }
    }
    bool f = true;
    for (int i = 0; i < number.size(); i++) {
      if (score[i] >= 1000000) {
        cout << number[i] << endl;
        f = false;
      }
    }
    if (f) cout << "NA" << endl;
  }
  return 0;
}
