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 sc = new Scanner(System.in);
                while (true) {
                        int N = sc.nextInt(), count = 0;
                        if (N == 0) {
                                break;
                        }
                        long A[] = new long[4001];
                        for (int i = 0; i < N; i++) {
                                int e = sc.nextInt();
                                long p = sc.nextLong(), q = sc.nextLong();
                                A[e] += p * q;
                                if (A[e] >= 1000000) {
                                        System.out.println(e);
                                        count++;
                                        A[e] = Long.MIN_VALUE;
                                }
                        }
                        if (count == 0) {
                                System.out.println("NA");
                        }
                }
        }
}