#include <bits/stdc++.h>
int main() {
  int n;
  int flag2 = 0;
  while (scanf("%d", &n), n) {
    int i, k, num[4000], flag = 0;
    long unitPrice[4000], saleQuantity[4000], earning[4000] = {0};
    if (flag2 == 0) printf("\n");
    for (i = 0; i < n; i++) {
      scanf("%d%ld%ld", &num[i], &unitPrice[i], &saleQuantity[i]);
      earning[i] = unitPrice[i] * saleQuantity[i];
      for (k = 0; k < i; k++) {
        if (num[i] == num[k]) {
          earning[k] = earning[i] + earning[k];
          earning[i] = 0;
        }
      }
    }
    for (i = 0; i < n; i++) {
      if (earning[i] >= 1000000) {
        printf("%d\n", num[i]);
        flag += 1;
      }
    }
    if (flag == 0) {
      printf("NA\n");
    }
    flag2 += 1;
  }
  return 0;
}
