#include <bits/stdc++.h>
using namespace std;
int main() {
  const int Sale = 1000000;
  while (true) {
    int n;
    int counter = 0;
    cin >> n;
    if (n == 0) {
      break;
    }
    int id[n], sale[n], result[n];
    for (int i = 0; i < n; i++) {
      cin >> id[i] >> sale[i] >> result[i];
      if (sale[i] * result[i] >= Sale) {
        cout << id[i] << endl;
        counter++;
      }
    }
    if (counter == 0) {
      cout << "NA" << endl;
    }
  }
}
