#include <bits/stdc++.h>
using namespace std;
int main(void) {
  int n, count = 0;
  vector<int> vec1, vec2, vec3, vec4;
  cin >> n;
  for (int i = 0; i < n; i++) {
    int j, m, l;
    cin >> j >> m >> l;
    vec1.push_back(j);
    vec2.push_back(m);
    vec3.push_back(l);
  }
  for (int i = 0; i < n; i++) {
    if (vec2[i] * vec3[i] >= 1000000) {
      cout << vec1[i] << endl;
      count++;
    }
  }
  if (count == 0) {
    cout << "NA" << endl;
  }
  return 0;
}
