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.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Scanner;


class Main {

	public static void main(String[] args) throws NumberFormatException, IOException {
		BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
		ArrayList<String> SL = new ArrayList<String>();
		while(true){
			int num = Integer.parseInt(in.readLine());
			if(num == 0){
				break;
			}
			ArrayList<String> shain = new ArrayList<String>();
			HashSet<String> over = new HashSet<String>();
			HashMap<String,Integer> sale = new HashMap<String,Integer>();
			for(int i = 0;i<num;i++){
				String[] ss = in.readLine().split(" ");
				if(!over.contains(ss[0])){	
					if(!sale.containsKey(ss[0])){	
						sale.put(ss[0],0);
						shain.add(ss[0]);
					}
					long s = (long)sale.get(ss[0])+(long)Integer.parseInt(ss[1])*(long)Integer.parseInt(ss[2]);
					
					if(s > 999999){
						over.add(ss[0]);
					}
					else{
						sale.put(ss[0],(int)s);
					}
				}
			}
			ArrayList<String> SLs = new ArrayList<String>();
			for(String s:shain){
				if(over.contains(s)){
					SLs.add(s);
				}
			}
			if(SLs.size() == 0){
				SLs.add("NA");
			}
			SL.addAll(SLs);
		}
		for(String s : SL){
			System.out.println(s);
		}

	}

}