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