#include <bits/stdc++.h>
using namespace std;
int main() {
  int num;
  int LINE = 1000000;
  while (cin >> num, num) {
    map<int, long long> employees;
    map<int, long long>::iterator itr;
    employees.clear();
    bool flg = false;
    for (int i = 0; i < num; i++) {
      int id = 0, q = 0, p = 0;
      cin >> id >> q >> p;
      employees[id] += (q * p);
    }
    for (itr = employees.begin(); itr != employees.end(); itr++) {
      if (itr->second >= LINE) {
        cout << itr->first << endl;
        flg = true;
      }
    }
    if (!flg) {
      cout << "NA" << endl;
    }
  }
  return 0;
}
