#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, val, num, inindex;
  vector<int> Index;
  map<int, long long> List;
  while (true) {
    scanf("%d", &n);
    if (n == 0) break;
    List.clear();
    Index.clear();
    for (int i = 0; i < n; i++) {
      scanf("%d %d %d", &inindex, &val, &num);
      if (!List[inindex]) {
        Index.push_back(inindex);
      }
      List[inindex] += val * num;
    }
    bool NAf = true;
    for (int i = 0; i < Index.size(); i++) {
      if (List[Index[i]] >= 1000000) {
        printf("%d\n", Index[i]);
        NAf = false;
      }
    }
    if (NAf) printf("NA\n");
  }
  return 0;
}
