#include <bits/stdc++.h>
using namespace std;
int existnum(vector<int> v, int e) {
  for (int i = 0; i < v.size(); i++) {
    if (v[i] == e) return i;
  }
  return -1;
}
int main(void) {
  int n, b = 0, e, p, q, num;
  vector<int> se, sp, sq;
  while (1) {
    cin >> n;
    if (n == 0) break;
    for (int i = 0; i < n; i++) {
      cin >> e;
      cin >> p;
      cin >> q;
      if ((num = existnum(se, e)) != -1) {
        sp[num] += p;
        sq[num] += q;
      } else {
        se.push_back(e);
        sp.push_back(p);
        sq.push_back(q);
      }
    }
    for (int i = 0; i < n; i++) {
      if (sp[i] * sq[i] >= 1000000) {
        cout << se[i] << endl;
        b = 1;
      }
    }
    if (b == 0) {
      cout << "NA" << endl;
    }
    sp.clear();
    se.clear();
    sq.clear();
    b = 0;
  }
  return 0;
}
