#include <bits/stdc++.h>
using namespace std;
long long worker[4001];
int main() {
  int n, id;
  long long p, q;
  bool isNA = 1;
  while (cin >> n && n) {
    worker[4001] = {0};
    for (int i = 0; i < n; ++i) {
      cin >> id >> p >> q;
      if (worker[id] < 1000000 && worker[id] + p * q >= 1000000) {
        cout << id << endl;
        isNA = 0;
      }
      worker[id] += p * q;
    }
  }
  if (isNA) {
    cout << "NA" << endl;
  }
  return 0;
}
