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.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

public class Main {

	public static void main(String[] args) throws IOException {

		BufferedReader br =
				new BufferedReader(new InputStreamReader(System.in));

		while (true) {
			int n = Integer.parseInt(br.readLine());
			if (n == 0) break;

			ArrayList<Integer> number = new ArrayList<Integer>();
			ArrayList<Long> outCome = new ArrayList<Long>();

			for (int i = 0; i < n; i++) {
				String[] str = br.readLine().split(" ");
				int num = Integer.parseInt(str[0]);
				long price = Integer.parseInt(str[1]);
				long cnt = Integer.parseInt(str[2]);
				if (number.contains(num)) {
					int index = number.indexOf(num);
					outCome.set(index, outCome.get(index) + (price * cnt));
				} else {
					number.add(num);
					outCome.add(price * cnt);
				}
			}
			boolean naFlg = true;
			for (int j = 0; j <outCome.size(); j++) {
				if (outCome.get(j) >= 1000000) {
					naFlg = false;
					System.out.println(number.get(j));
				}
			}
			if (naFlg) System.out.println("NA");
		}

	}

}