#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, id, sale, k, cnt, flg;
  while (1) {
    int outid[4001] = {0}, total[4001] = {0};
    cin >> n;
    if (n == 0) break;
    cnt = 0;
    flg = 0;
    for (int i = 0; i < n; i++) {
      cin >> id >> sale >> k;
      outid[i] = id;
      total[i] = sale * k;
    }
    for (int i = 0; i < n - 1; i++) {
      for (int j = i + 1; j < n; j++) {
        if (outid[i] == outid[j]) {
          total[i] += total[j];
          cnt++;
        }
      }
    }
    for (int i = 0; i < n - cnt; i++) {
      if (total[i] >= 1000000) {
        cout << outid[i] << endl;
        flg = 1;
      }
    }
    if (flg == 0) {
      cout << "NA" << endl;
    }
  }
  return 0;
}
