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.ArrayList;
import java.util.HashMap;
import java.util.Scanner;

public class Main{

	public void calculate(){
		Scanner input = new Scanner(System.in);

		//?????????????????¶??°???????????????
		long numSellings = Long.parseLong(input.nextLine());

		//?????????????????¶??°???0??????????????§????????????
		while(numSellings != 0){

			//??????????????????????????????????????¬?????????????????????????????????
			ArrayList<Long> staffs = new ArrayList<Long>();
			//????????¨????£??????????????????????
			HashMap<Long,Long> staffProceedMap = new HashMap<Long,Long>();

			//??¶??°?????§?¨?????????????
			for(int i = 0; i < numSellings; i++){
				//??????????????????????????????????????¨??????????£?????£??????????????¨??????????
				String[] lines = input.nextLine().split(" ");
				long staffNo = Long.parseLong(lines[0]);
				long price   = Long.parseLong(lines[1]) * Long.parseLong(lines[2]);

				//????????????????????????????£??????±?????\?????????
				if(staffProceedMap.containsKey(staffNo)){
					//2?????\??????????£?????????£????????????value????¶???????????????¢?????????
					staffProceedMap.put(staffNo,price + staffProceedMap.get(staffNo));
				} else {
					//1????????????????£?????????£?????????????????????????????????????????±???????????????
					staffs.add(staffNo);
					staffProceedMap.put(staffNo,price);
				}
			}

			//??¨???????????????????????§???????????¨??????????????¨??????
			boolean success = false;

			//???????????????????????§????????????????£?????????????????????????
			for(long staff : staffs){
				if(staffProceedMap.get(staff) >= 1000000){
					System.out.println(staff);
					success = true;
				}
			}

			if(!success){
				System.out.println("NA");
			}
			numSellings = Long.parseLong(input.nextLine());
		}
		input.close();
	}

	public static void main (String[] args) throws java.lang.Exception{

		Main saleResult = new Main();
		saleResult.calculate();
	}
}