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.math.*;
import java.io.*;
 
import static java.lang.Math.*;
import static java.util.Arrays.*;
 
public class Main{
 
    Scanner sc;
 
    static final int INF=1<<28;
    static final double EPS=1e-9;
 
    void run(){
        sc=new Scanner(System.in);
        for(;;){
            int n=sc.nextInt();
            if(n==0)
                break;
            HashMap<Integer, Long> map=new HashMap<Integer, Long>();
            LinkedList<Integer> list=new LinkedList<Integer>();
            for(int i=0; i<n; i++){
                int id=sc.nextInt();
                long a=sc.nextInt();
                long b=sc.nextInt();
                if(!map.containsKey(id)){
                    list.addLast(id);
                    map.put(id, 0l);
                }
                map.put(id, map.get(id)+a*b);
            }
            boolean f=false;
            for(int id : list){
//              println("test:"+id+":"+map.get(id));
                if(map.get(id)>=1000000){
                    println(id+"");
                    f=true;
                }
            }
            if(!f)
                println("NA");
        }
        sc.close();
    }
 
    void print(String s){
        System.out.print(s);
    }
 
    void println(String s){
        System.out.println(s);
    }
 
    public static void main(String[] args){
        new Main().run();
    }
}