Problem: There is data on sales of your company. Your task is to write a program which identifies good workers.

The program should read a list of data where each item includes the employee ID i, the amount of sales q and the corresponding unit price p. Then, the program should print IDs of employees whose total sales proceeds (i.e. sum of p × q) is greater than or equal to 1,000,000 in the order of inputting. If there is no such employees, the program should print "NA". You can suppose that n < 4000, and each employee has an unique ID. The unit price p is less than or equal to 1,000,000 and the amount of sales q is less than or equal to 100,000.



Input

The input consists of several datasets. The input ends with a line including a single 0. Each dataset consists of:


n (the number of data in the list)
i p q
i p q
:
:
i p q


Output

For each dataset, print a list of employee IDs or a text "NA"

Example

Input

4
1001 2000 520
1002 1800 450
1003 1600 625
1001 200 1220
2
1001 100 3
1005 1000 100
2
2013 5000 100
2013 5000 100
0


Output

1001
1003
NA
2013

Solution (in CPP):

Solution:
#include <bits/stdc++.h>
using namespace std;

int main()
{
  int n;
  while (cin >> n, n){
    bool f = false;
    map<int, long> mil;
    vector<int> vi;
    int e, p, q;
    for (int i = 0; i < n; i++){
      cin >> e >> p >> q;
      if (mil[e] == 0) vi.push_back(e);
      mil[e] += p * q;
    }

    int m = vi.size();
    for (int i = 0; i < m; i++){
      if (mil[vi[i]] >= 1000000) {
        cout << vi[i] << "\n";
        f = true;
      }
    }
    if (!f) cout << "NA\n";
  }
}