#include <bits/stdc++.h>
using namespace std;
int main() {
  vector<pair<int, long long int> > data;
  int n;
  while (cin >> n, n) {
    for (int i = 0; i < n; i++) {
      int num, cost, goodsNum;
      cin >> num >> cost >> goodsNum;
      bool exist = false;
      for (int j = 0; j < data.size(); j++) {
        if (data[j].first == num) {
          data[j].second += cost * goodsNum;
          exist = true;
          break;
        }
      }
      if (!exist) {
        data.push_back(pair<int, long long int>(num, cost * goodsNum));
      }
    }
    bool exist = false;
    for (int i = 0; i < data.size(); i++) {
      if (1000000 <= data[i].second) {
        cout << data[i].first << endl;
        exist = true;
      }
    }
    if (!exist) cout << "NA" << endl;
    data.clear();
  }
}
