#include <bits/stdc++.h>
using namespace std;
int main(void) {
  int i, n;
  vector<int> data;
  vector<int>::iterator vc_it;
  while (cin >> n, n) {
    int tof = 1;
    int num, price, qua;
    map<int, long long int> staff;
    map<int, long long int>::iterator itr;
    while (n-- > 0) {
      cin >> num >> price >> qua;
      staff[num] = staff[num] ? staff[num] + (long long int)price * qua
                              : (long long int)price * qua;
    }
    for (itr = staff.begin(); itr != staff.end(); itr++) {
      if (itr->second >= 1000000) {
        data.push_back(itr->first);
        tof = 0;
      }
    }
    if (tof) data.push_back(0);
  }
  for (vc_it = data.begin(); vc_it != data.end(); vc_it++) {
    if (*vc_it)
      cout << *vc_it << endl;
    else
      cout << "NA" << endl;
  }
}
