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.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.LinkedHashMap;
import java.util.Map;

public class Main {

	public static void main(String[] args) throws Exception {
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		int dataNum; 
		while((dataNum = Integer.parseInt(br.readLine())) != 0){
			Map<String,Integer> employeeInfo = new LinkedHashMap<>();
			for(int i = 0 ; i < dataNum ; i++){
				String line = br.readLine();
				String[] dividedLine = line.split(" ");
				Integer result;
				if(employeeInfo.containsKey(dividedLine[0])){
					result = employeeInfo.get(dividedLine[0]) + Integer.parseInt(dividedLine[1]) * Integer.parseInt(dividedLine[2]);
					employeeInfo.put(dividedLine[0],result);
				}else{
					result = Integer.parseInt(dividedLine[1]) * Integer.parseInt(dividedLine[2]);
					employeeInfo.put(dividedLine[0],result);
				}
			}
			
			boolean isDispNA = true;
			for(String key : employeeInfo.keySet()){
				 if(employeeInfo.get(key) >= 1000000){
					 System.out.println(key);
					 isDispNA = false;
				 }
			}
			if(isDispNA){
				 System.out.println("NA");
			}
		}
	}
}