#include <bits/stdc++.h>
int member[4010][3];
int main() {
  int n;
  bool na = false;
  while (scanf("%d", &n) == 1 && n) {
    na = false;
    for (int i = 0; i < n; i++) {
      scanf("%d %d %d", &member[i][0], &member[i][1], &member[i][2]);
      int tmp = member[i][1] * member[i][2];
      if (tmp > 1000000) {
        printf("%d\n", member[i][0]);
        na = true;
      }
    }
    if (!na) {
      printf("NA\n");
    }
  }
  return 0;
}
