#include <bits/stdc++.h>
using namespace std;
const int target = 1000000;
int main() {
  int data;
  while (1) {
    scanf("%d", &data);
    if (data == 0) break;
    vector<pair<int, int>> company;
    pair<int, int> sells;
    bool hero = false;
    int num, sell, cnt;
    for (int i = 0; i < data; i++) {
      scanf("%d %d %d", &num, &sell, &cnt);
      bool search = false;
      for (int j = 0; j < company.size(); j++) {
        if (company[j].first == num) {
          search = true;
          company[j].second += sell * cnt;
          break;
        }
      }
      if (search == false) {
        sells.first = num;
        sells.second = sell * cnt;
        company.push_back(sells);
      }
    }
    for (int i = 0; i < company.size(); i++) {
      if (company[i].second >= target) {
        hero = true;
        printf("%d\n", company[i].first);
      }
    }
    if (hero == false) printf("NA\n");
  }
  return 0;
}
