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.HashMap;
import java.util.Scanner;
class Main {
	long[][] total;
	Scanner scan = new Scanner(System.in);
	HashMap<Integer,Integer> hm;
	
	public static void main(String args[]){
		Main app = new Main();
		
		
		while(true){
			if(app.input() == -1){
				break;
			}
			app.exec();
		}
	}
	
	public int input(){
		int count=0,n,number;
		hm = new HashMap<Integer,Integer>();
		
		n = scan.nextInt();
		if(n == 0){
			return -1;
		}
		total = new long[n][2];
		for(int i=0;i<n;i++){
			number = scan.nextInt();
			if(hm.containsKey(number)){
				total[hm.get(number)][1] += scan.nextLong()*scan.nextLong();
			}else{
				total[count][0] = number;
				total[count][1] = scan.nextLong()*scan.nextLong();
				hm.put(number,count);
				count++;
			}
		}
		
		return 1;
	}
	
	public void exec(){
		boolean flag = true;
		
		for(int i=0;i<hm.size();i++){
			if(total[i][1] >= 1000000){
				System.out.println(total[i][0]);
				flag = false;
			}
		}
		if(flag){
			System.out.println("NA");
		}
	}
}