#include <bits/stdc++.h>
using namespace std;
int main() {
  int i;
  int n, b, m, s, l, d[4000];
  for (;;) {
    cin >> n;
    if (n == 0) break;
    l = 0;
    for (i = 0; i < n; i++) {
      cin >> b >> m >> s;
      if ((long long)m * (long long)s >= 1000000) {
        d[l] = b;
        l++;
      }
    }
    if (l) {
      for (i = 0; i < l; i++) cout << d[i] << endl;
    } else
      cout << "NA" << endl;
  }
  return 0;
}
