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 JAVA):

Solution:
import java.util.*;

class Main {
  public static void main (String[] args) {
    Scanner scanner = new Scanner(System.in);
    while (scanner.hasNext()) {
      int n = scanner.nextInt();
      if (n == 0) {
        break;
      }
      List<Integer> nos = new ArrayList<Integer>();
      List<Double> prs = new ArrayList<Double>();
      for (int ii = 0; ii < n; ii++) {
        Integer no = scanner.nextInt();
        Double at = scanner.nextDouble();
        Double cn = scanner.nextDouble();
        int pos = nos.indexOf(no);
        if (pos != -1) {
          prs.set(pos, prs.get(pos) + at * cn);
        } else {
          nos.add(no);
          prs.add(at * cn);
        }
      }

boolean flag = true;
for (int ii = 0; ii < nos.size(); ii++) {
  if (prs.get(ii) >= 1000000) {
    System.out.println(nos.get(ii));
    flag = false;
  }
}
if (flag) {
  System.out.println("NA");
}
    }
  }
}