#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, ID, price, quantity, sales[4001] = {0}, check, k, kaburi, rep[4001];
  while (cin >> n) {
    int sales[4001] = {0};
    if (n == 0) break;
    check = 0;
    k = 0;
    for (int i = 0; i < n; i++) {
      cin >> ID >> price >> quantity;
      sales[ID] += price * quantity;
      kaburi = 0;
      for (int j = 0; j < k; j++) {
        if (rep[j] == ID) {
          kaburi = 1;
        }
      }
      if ((sales[ID] >= 1000000) && (kaburi == 0)) {
        cout << ID << endl;
        check = 1;
        rep[k] = ID;
        k++;
      }
    }
    if (check == 0) cout << "NA" << endl;
  }
}
