#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, index[10000], inindex, val, num, couter;
  map<int, long long> List;
  while (true) {
    scanf("%d", &n);
    if (n == 0) break;
    couter = 0;
    List.clear();
    for (int i = 0; i < n; i++) {
      scanf("%d %d %d", &inindex, &val, &num);
      if (List[inindex] == 0) {
        index[couter] = inindex;
        couter++;
      }
      List[inindex] += val * num;
    }
    int NAf = true;
    for (int i = 0; i < couter; i++) {
      if (List[index[i]] >= 1000000) {
        printf("%d\n", index[i]);
        NAf = false;
      }
    }
    if (NAf) printf("NA\n");
  }
  return 0;
}
