#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, a, f;
  long long b, c;
  while (1) {
    f = 1;
    cin >> n;
    if (n == 0) return 0;
    for (int i = 0; i < n; i++) {
      cin >> a >> b >> c;
      if (b * c >= 1000000) {
        cout << a << endl;
        f = 0;
      }
    }
    if (f) cout << "NA" << endl;
  }
}
