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