#include <bits/stdc++.h>
using namespace std;
int main() {
  while (1) {
    int n;
    cin >> n;
    if (n == 0) {
      break;
    }
    vector<pair<int, int>> data;
    vector<int> nanum;
    for (int i = 0; i < n; ++i) {
      int num, sa, ko;
      cin >> num;
      cin >> sa;
      cin >> ko;
      int sum = sa * ko;
      if (i == 0) {
        nanum.push_back(num);
        data.push_back(make_pair(num, sum));
      } else {
        auto a = find(nanum.begin(), nanum.end(), num);
        if (*a == 0) {
          nanum.push_back(num);
          data.push_back(make_pair(num, sum));
        }
      }
    }
    int check = 0;
    for (pair<int, int> e : data) {
      if (e.second >= 1000000) {
        check = 1;
        cout << e.first << endl;
      }
    }
    if (check == 0) {
      cout << "NA" << endl;
    }
  }
  return 0;
}
