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.util.Map.Entry;

class Main {
	Scanner sc = new Scanner(System.in);

	class DLong{
		long val;
		public DLong(long _val){
			val=_val;
		}
	}
	public void run() {
		while(true){
			int n=sc.nextInt();
			if(n==0)break;
			LinkedHashMap<Integer,DLong> datalist=new LinkedHashMap<Integer,DLong>();
			for(int i=0;i<n;i++){
				int id=sc.nextInt();
				long val=sc.nextLong()*sc.nextLong();
				if(datalist.containsKey(id)){
					DLong v=datalist.get(id);
					v.val+=val;
				}else{
					datalist.put(id,new DLong(val));
				}
			}
			boolean isset=false;
			for(Entry<Integer,DLong> entry:datalist.entrySet()){
				if(entry.getValue().val>=1000000){
					ln(entry.getKey());
					isset=true;
				}
			}
			if(!isset){
				ln("NA");
			}
		}
	}
	public static void main(String[] args) {
		new Main().run();
	}
	public static void pr(Object o) {
		System.out.print(o);
	}
	public static void ln(Object o) {
		System.out.println(o);
	}
	public static void ln() {
		System.out.println();
	}
}