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

using System;
using System.Collections.Generic;
using System.Text;

class TEST{
    static void Main(){
		while (true)
		{
			List<int> m = new List<int>();	//データ格納用リスト

			//データ数の取得、0か50以上であればループ終了。
			int getNumber = int.Parse(Console.ReadLine());
			if ((getNumber == 0) && (getNumber > 50)){
				break;
			}

			int[] s = new int[4001];
			//取得したデータ数だけループする。
			for (int b = 0; b < getNumber; b++)
			{
				int[] c = Console.ReadLine().Split().Select(int.Parse).ToArray();
				 s[c[0]] += c[1] * c[2];
				 foreach(int q in m)
				 {
					if (q == c[0]) goto k;
				 }
				 m.Add(c[0]);
			k:;
			}
			List<int> e = new List<int>();
			for(int d = 0; d < m.Count; d++)
			{
				if (s[m[d]] >= 1000000) e.Add(m[d]);
			}
			if (e.Count == 0)
			{
				Console.WriteLine("NA");
			}
			else
			{
				foreach(int o in e)
				{
					Console.WriteLine(o);
				}
			}
		}
	}
}


