#include <bits/stdc++.h>
int main(void) {
  int n, sales, num, cost;
  int i, j, mem;
  long long int staf[4005][2];
  int flag;
  while (1) {
    scanf("%d", &n);
    if (n == 0) break;
    mem = 0;
    for (i = 0; i < n; i++) {
      scanf("%d %d %d", &num, &cost, &sales);
      flag = 0;
      for (j = 0; j < mem; j++) {
        if (staf[j][0] == num) {
          staf[j][1] += cost * sales;
          flag = 1;
        }
      }
      if (flag == 0) {
        staf[i][0] = num;
        staf[i][1] = cost * sales;
        mem++;
      }
    }
    flag = 0;
    for (i = 0; i < mem; i++) {
      if (staf[i][1] >= 1000000) {
        printf("%lld\n", staf[i][0]);
        flag = 1;
      }
    }
    if (flag == 0) puts("NA");
  }
  return (0);
}
