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.lang.*;
import java.io.*;

public class Main{
	public static void main (String[] args) throws java.lang.Exception{
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
	    long n = Long.parseLong(br.readLine());
	    while(n!=0){
	        ArrayList<Long> syain = new ArrayList<Long>();
	        HashMap<Long,Long> syainMap = new HashMap<Long,Long>();
	        for(int i=0;i<n;i++){
	            String[] lines = br.readLine().split(" ");
	            long syainno = Long.parseLong(lines[0]);
	            long price   = Long.parseLong(lines[1]) * Long.parseLong(lines[2]);
	            if(syainMap.containsKey(syainno)){
	                syainMap.put(syainno,price + syainMap.get(syainno));
	            }else{
	                syain.add(syainno);
	                syainMap.put(syainno,price);
	            }
	        }
	        boolean ans = false;
	        for(long s:syain){
	            if(syainMap.get(s)>=1000000){
	                System.out.println(s);
	                ans = true;
	            }
	        }
	        if(!ans){
	            System.out.println("NA");
	        }
	        n = Long.parseLong(br.readLine());
	    }
	}
}