#include <bits/stdc++.h>
using namespace std;
int main() {
  int i[4000], p, q, sum[4000];
  for (;;) {
    int n, count;
    cin >> n;
    if (n) {
      count = 0;
      for (int j = 0; j < n; j++) {
        cin >> i[j] >> p >> q;
        sum[j] = p * q;
        if (j == 0 && sum[j] >= 1000000) {
          cout << i[j] << endl;
          count++;
        }
        for (int k = 0; k < j; k++) {
          if (i[k] == i[j]) {
            if (sum[k] >= 1000000) {
              break;
            } else {
              sum[k] += sum[j];
              if (sum[k] >= 1000000) {
                cout << i[j] << endl;
                count++;
              }
              break;
            }
          }
        }
      }
      if (count == 0) {
        cout << "NA" << endl;
      }
    } else
      break;
  }
  return 0;
}
