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.*;
import java.util.*;
import java.math.*;
public class Main {
    public static void main(String[] args)
            throws java.io.IOException{
        Scanner scan = new Scanner(System.in);
   long [] syatiku = new long[4001];
 boolean flag =true;
while(flag){
        int n= scan.nextInt();
if(n==0){flag =false;break;}
       for(int i=0;i<n;i++){

    syatiku[scan.nextInt()] = scan.nextLong() * scan.nextLong();
}long max =0;
int number=0;
for(int i=0;i<n;i++){
if(syatiku[i]>max){max = syatiku[i]; number =i;}
}
System.out.println(number);
}

            


   }
}