#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  while (cin >> n, n) {
    map<int, long long> m;
    int i;
    long long p, q;
    for (int k = 0; k < n; ++k) {
      cin >> i >> p >> q;
      m[i] += p * q;
    }
    bool na = true;
    for (auto it = m.begin(); it != m.end(); ++it) {
      if (1000000LL <= it->second) {
        cout << it->first << endl;
        na = false;
      }
    }
    if (na) cout << "NA" << endl;
  }
  return 0;
}
