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.Scanner;

class Main
{
	public static void main(String args[])
	{
		Scanner sc = new Scanner(System.in);
		
		while (true)
		{
			int n = sc.nextInt();
			if (n == 0) break;
			
			int mansID[] = new int[n];
			long mansValue[] = new long[n];
			int last = 0;
			
			for (int i = 0; i < n; i++)
			{
				int id = sc.nextInt();
				EXIST :
				{
					for (int j = 0; j < last; j++)
					{
						if (mansID[j] == id)
						{
							mansValue[j] += sc.nextLong() * sc.nextLong();
							break EXIST;
						}
					}
					mansID[last] = id;
					mansValue[last] = sc.nextLong() * sc.nextLong();
					last++;
				}
			}
			
			boolean flg = true;
			for (int i = 0; i < last; i++)
			{
				if (mansValue[i] >= 1000000)
				{
					System.out.println(Long.toString(mansID[i]));
					flg = false;
				}
			}
			if (flg)
				System.out.println("NA");
		}
	}
}