Problem:
Sale Result

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"

Sample 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 for the Sample Input

1001
1003
NA
2013

Solution in JAVA (judge verdict: Wrong Answer)

import java.util.*;

class Main{
	public static void main(String[] args){
		Solve s = new Solve();
		s.solve();
	}	
}

class Solve{
	Solve(){}
	
	Scanner in = new Scanner(System.in);

	void solve(){
		while(in.hasNext()){
			int n = in.nextInt();
			if(n == 0) return;
			Map<Integer,Long> m = new HashMap<Integer,Long>();
			for(int i = 0; i < n; i++){
				int k = in.nextInt();
				long p = in.nextInt(), l = in.nextInt();
				if(m.get(k) == null) m.put(k,p*l);
				else m.put(k,m.get(k)+p*l);
			}
			boolean f = true;
			for(Map.Entry<Integer,Long> entry : m.entrySet()){
				if(entry.getValue() >= 1000000l) {
					System.out.println(entry.getKey());
					f = false;
				}
			}
			if(f) System.out.println("NA");
		}
	}

}