#include <bits/stdc++.h>
int main() {
  std::vector<int> a;
  while (true) {
    int n;
    int c = 0;
    std::cin >> n;
    if (n == 0) {
      break;
    }
    std::vector<int> v(n), w(n);
    int t, u;
    for (int i = 0; i < n; ++i) {
      std::cin >> w[i] >> t >> u;
      v[i] = t * u;
    }
    for (int i = 0; i < n; ++i) {
      for (int l = 0; l < n; ++l) {
        if ((v[i] == v[l]) && (i != l)) {
          v[i] += v[l];
          v.erase(v.begin() + l);
          n -= 1;
        }
      }
    }
    for (int i = 0; i < n; ++i) {
      if (v[i] >= 1000000) {
        a.push_back(w[i]);
        ++c;
      }
      if ((c == 0) && (i == n - 1)) {
        a.push_back(0);
      }
    }
    v.clear();
    w.clear();
  }
  for (int i = 0; i < a.size(); ++i) {
    if (a[i] == 0)
      std::cout << "NA" << std::endl;
    else
      std::cout << a[i] << std::endl;
  }
  return 0;
}
