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.InputStreamReader;
import java.util.ArrayList;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

class Main {
	public static void main(String[] args) {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

		String line;
		try {
			for (;;) {
				line = br.readLine();
				if ("0".equals(line)) {
					break;
				}

				Map<String, List<long[]>> sales = new LinkedHashMap<>();
				int size = Integer.parseInt(line);
				for (int i = 0; i < size; i++) {
					String[] v = br.readLine().split(" ");
					String id = v[0];

					if (!sales.containsKey(id)) {
						sales.put(id, new ArrayList<>());
					}

					sales.get(id).add(new long[] { Long.parseLong(v[1]), Long.parseLong(v[2]) });
				}

				boolean na = true;
				for (Entry<String, List<long[]>> entry : sales.entrySet()) {
					long total = 0;

					for (long[] p : entry.getValue()) {
						total += p[0] * p[1];
					}

					if (total >= 1000000) {
						System.out.println(entry.getKey());
						na = false;
					}
				}

				if (na) {
					System.out.println("NA");
				}
			}
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}