#include <bits/stdc++.h>
using namespace std;
int main() {
  int in;
  cin >> in;
  int p[in][in * 3], i, ii, c = 0, uri[in], k;
  for (i = 1; in >= i; i++) {
    cin >> p[i][0] >> p[i][1] >> p[i][2];
    uri[i] = 0;
  }
  for (i = 1; in >= i; i++) {
    for (ii = 1; in >= ii; ii++) {
      if (p[i][0] == p[ii][0]) {
        uri[ii] = uri[ii] + p[i][1] * p[i][2];
      }
    }
  }
  for (i = 1; in >= i; i++) {
    k = 0;
    for (ii = 1; i > ii; ii++) {
      if (p[i][0] == p[ii][0]) {
        k = 1;
      }
    }
    if (uri[i] >= 1000000 and k == 0) {
      cout << p[i][0] << endl;
      c++;
    }
  }
  if (c == 0 and in != 0) cout << "NA" << endl;
}
