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.LinkedHashMap;
import java.util.Map;
import java.util.Scanner;

class Main{


	public static void main(String[] a){


		Scanner sc = new Scanner(System.in);



		while(sc.hasNext()) {

			int n = sc.nextInt();

			if(n == 0){break;}


			int syainNo;
			int tanka;
			int suryo;
			int goukei;
			Map<Integer, Integer> map = new LinkedHashMap<>();

			for(int i = 0; i < n; i++) {
				syainNo = sc.nextInt();
				tanka = sc.nextInt();
				suryo = sc.nextInt();
				goukei = tanka * suryo;

				if(map.get(syainNo) == null) {
					map.put(syainNo, goukei);
				}else{
					map.put(syainNo, map.get(syainNo) + goukei);
				}

			}

			int count = 0;
			for(int no: map.keySet()) {
				int data = map.get(no);

				if(data >= 1000000) {
					System.out.println(no);
					count++;
				}

			}
			if(count == 0) {System.out.println("NA");}


		}


	}
}