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.*;

public class Main {
    private static final Scanner scn = new Scanner(System.in);
    
    public static void main(String[] args) {
        for(int n; (n = scn.nextInt()) > 0; printMap(createMap(n)));
    }
    
    private static Map<Integer, Long> createMap(int n) {
        Map<Integer, Long> mil = new LinkedHashMap<>();
        for(int i = 0; i < n; i++) {
            int id = scn.nextInt();
            long sale = scn.nextLong() * scn.nextLong();
            if(mil.containsKey(id)) {
                mil.put(id, mil.get(id) + sale);
            } else {
                mil.put(id, sale);
            }
        }
        return mil;
    }
    
    private static void printMap(Map<Integer, Long> mil) {
        boolean flg = true;
        for(Integer elm : mil.keySet()) {
            if(mil.get(elm) > 999999) {
                System.out.println(elm);
                flg = false;
            }
        }
        if(flg) {
            System.out.println("NA");
        }
    }
}