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.*;
import java.math.*;
public class Main {
	static Scanner sc = new Scanner(System.in);
	static int n;
	static final int TOTAL = 1000000;
	static long[][] matrix;
	public static void main(String[] args) {
		while(read()){
			solve();
		}
	}
	
	static boolean read(){
		n = sc.nextInt();
		if(n == 0)return false;
		matrix = new long[n][2];
		for(int i = 0; i < n; i++){
			matrix[i][0] = sc.nextLong();
			matrix[i][1] = sc.nextLong()*sc.nextLong();
		}
		return true;
	}
	
	static void solve(){
		boolean isOver = false;
		for(int i = 0; i < matrix.length; i++){
			long ID = matrix[i][0];
			long value = matrix[i][1];
			for(int j = i+1; j < matrix.length; j++){
				if(ID == matrix[j][0]){
					value += matrix[j][1];
				}
			}
			if(value >= TOTAL){
				System.out.println(ID);
				isOver = true;
			}
		}
		if(!isOver)System.out.println("NA");
	}
}