#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, no[4000], t[4000], num[4000], a[4000], i, j;
  while (cin >> n && n) {
    for (i = 0, j = 0; i < n; i++) {
      cin >> no[i] >> t[i] >> num[i];
      if (t[i] * num[i] > 1000000) {
        a[j] = no[i], j++;
      }
    }
    if (j == 0)
      cout << "NA" << endl;
    else
      for (i = 0; i < j; i++) cout << a[i] << endl;
  }
  return 0;
}
