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.*;
import java.util.*;

public class Main{
	public static void main(String args[]){
		try{
			new Main();
		}catch(IOException err){
			err.printStackTrace();
		}
	}
	
	public Main() throws IOException{
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		List<Integer> Ans = new ArrayList<Integer>();
		String line;
		
		while((line = in.readLine()) != null){
			int isGood = 0;
			int size = Integer.parseInt(line);
			
			if(size==0) break;
			
			List<Integer> ids = new ArrayList<Integer>();
			List<Long> sales = new ArrayList<Long>();
			
			for(int n=0; n<size; n++){
				line = in.readLine();
				String[] dst = line.split(" ");
				int id = Integer.parseInt(dst[0]);
				int price = Integer.parseInt(dst[1]);
				int num = Integer.parseInt(dst[2]);
				long sale = (long)price * (long)num;
				
				if(!ids.contains(id)){
					ids.add(id);
					sales.add(sale);
				}
				else{
					int index = ids.indexOf(id);
					sale = sale + sales.get(index);
					sales.set(index, sale);
				}
			}
			
			for(int n=0; n<ids.size(); n++){
				if(sales.get(n) >= 1000000){
					Ans.add(ids.get(n));
					isGood = 1;
				}
			}
			
			if(isGood == 0){
				Ans.add(-1);
			}
		}
		
		for(int n=0; n<Ans.size(); n++){
			if(Ans.get(n)==-1){
				System.out.println("NA");	
			}
			else{
				System.out.println(Ans.get(n));
			}
		}
	}
}