#include <bits/stdc++.h>
using namespace std;
class saleData {
 public:
  int hireNo;
  int saleValue = 0;
  void addSale(int value) {
    if (saleValue < 1000000) {
      saleValue += value;
    }
  }
  bool judge() {
    if (saleValue >= 1000000) {
      return true;
    }
    return false;
  }
};
int main() {
  while (1) {
    int dataCount;
    cin >> dataCount;
    vector<saleData> vobj;
    if (dataCount == 0) {
      break;
    }
    bool dataFlag = false;
    for (int i = 0; i < dataCount; i++) {
      int hireNo;
      int price;
      int No;
      cin >> hireNo >> price >> No;
      for (int j = 0; j < vobj.size(); j++) {
        if (vobj.size() == 0) {
          break;
        }
        if (vobj[j].hireNo == hireNo) {
          vobj[j].addSale(price * No);
          dataFlag = true;
          break;
        }
      }
      if (dataFlag == false) {
        saleData sObj;
        sObj.hireNo = hireNo;
        sObj.addSale(price * No);
        vobj.push_back(sObj);
      }
    }
    dataFlag = false;
    for (int i = 0; i < vobj.size(); i++) {
      if (vobj[i].judge() == true) {
        cout << vobj[i].hireNo << endl;
        dataFlag = true;
      }
    }
    if (dataFlag == false) {
      cout << "NA" << endl;
    }
  }
}
