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.util.Scanner;

public class Main {
	
	public static void main(String[] args) {
		Scanner stdIn = new Scanner(System.in);
		
		while(true){
			int n = stdIn.nextInt();
			if(n==0){
				return;
			}
			int[] d = new int[4001];
			boolean[] f = new boolean[4001];
			for(int i=0;i<n;i++){
				int num = stdIn.nextInt();
				int single = stdIn.nextInt();
				int element = stdIn.nextInt();
				for(int j=0;j<element;j++){
					if(!f[num]){
						d[num] += single;
					}
					else{
						break;
					}
					if(d[num]>999999){
						f[num] = true;
						break;
					}
				}
			}
			boolean output = true;
			for(int i=1;i<=4000;i++){
				if(f[i]){
					System.out.println(i);
					output = false;
				}
			}
			if(output){
				System.out.println("NA");
			}
		}
	}
}