#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  while (cin >> n) {
    if (n == 0) break;
    map<int, long long> member;
    for (int i = 0; i < n; i++) {
      int id;
      long long cost, count;
      cin >> id >> cost >> count;
      member[id] += cost * count;
    }
    bool exist = false;
    for (map<int, long long>::iterator m_i = member.begin();
         m_i != member.end(); m_i++) {
      if (m_i->second >= 1000000) {
        cout << m_i->first << endl;
        exist = true;
      }
    }
    if (!exist) {
      cout << "NA" << endl;
    }
  }
  return 0;
}
