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.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;

public class Main {


    public static void main(String[] args)  {

    	try{
            BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
            String line;
            while((line=br.readLine())!=null){if(line.isEmpty())break;
	        	String[] spl = line.split(" ");
	            int n = Integer.parseInt(spl[0]);
	            if(n==0){return;}
	            HashMap<Integer, Integer> hmap = new HashMap<Integer, Integer>();
	            ArrayList<Integer> alist=new ArrayList<Integer>();
	            for(int i=0; i<n; i++){
	            	//System.out.println(i+"n"+n);
	            	line= br.readLine();spl=line.split(" ");
	            	int shainBan=Integer.parseInt(spl[0]);
	            	if(!alist.contains(shainBan)){ alist.add(shainBan); }
	            	int tanka = Integer.parseInt(spl[1]);
	            	int kazu = Integer.parseInt(spl[2]);
	            	if(hmap.containsKey(shainBan)){
	            		hmap.put(shainBan, hmap.get(shainBan)+tanka*kazu);
	            	}else{
	            		hmap.put(shainBan,tanka*kazu);
	            	}
	            }//end FOR
//	            System.out.println("aaa");

	            ArrayList<Integer>  clear = new ArrayList<Integer>();
	            String printline= "";
	            for(int shai:alist){
	//            	System.out.println(shai+" "+hmap.get(shai));
	            	if(hmap.get(shai)>=1000000){
	            		printline+=shai+" ";
	            	System.out.println(shai);}
	            }
	            printline=printline.trim();
	            if(printline.length()==0){printline= "NA";System.out.println(printline);}
	            //System.out.println(printline);

            }//End WHILE


        }catch(Exception e){e.printStackTrace();}

    }


}