#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  int name, price, number;
  map<int, int> m_Employee;
  while (cin >> n) {
    if (n == 0) break;
    for (int i = 0; i < n; i++) {
      cin >> name >> price >> number;
      if (m_Employee.count(name)) {
        m_Employee[name] += price * number;
      } else {
        m_Employee.insert(map<int, int>::value_type(name, price * number));
      }
    }
    map<int, int>::iterator it = m_Employee.begin();
    bool flag = false;
    while (it != m_Employee.end()) {
      if ((*it).second >= 1000000) {
        flag = true;
        cout << (*it).first << endl;
      }
      it++;
    }
    if (!flag) {
      cout << "NA" << endl;
    }
    m_Employee.clear();
  }
  return 0;
}
