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.math.BigInteger;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

public class Main{
	public static void main(String[] args){
		Scanner stdIn = new Scanner(System.in);
		BigInteger million = new BigInteger("1000000");
		BigInteger sum;

		while(true){
			int staffCount = stdIn.nextInt();
			if(staffCount == 0)break;
			int[][] staffArray = new int[staffCount][3];
			boolean naFlag = true;
			List<Integer> numberList = new ArrayList<Integer>();
			for(int i = 0;i < staffCount; i++){
				staffArray[i][0] = stdIn.nextInt();
				staffArray[i][1] = stdIn.nextInt();
				staffArray[i][2] = stdIn.nextInt();
				long tempSum = staffArray[i][1] * staffArray[i][2];
//				System.out.println(tempSum);
				sum = new BigInteger(Long.toString(tempSum));
				if( sum.compareTo(million) >= 0){
					numberList.add(staffArray[i][0]);
					naFlag = false;
				}
			}
			if(naFlag){
				System.out.println("NA");
			}else{
				for(int i:numberList){
					System.out.println(i);
				}
			}
		}
	}
}