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 CPP):

Solution:
#include <iostream>
#include <map>
#include <vector>
#include <algorithm>
using namespace std;

int main(){
	int n, id;
	long long int a, b;

	while( cin >> n , n ){
		map<int,long long int> employees;
		vector<int> vc;
		bool flag = true;
		
		for(int i=0 ; i<n ; ++i ){
			cin >> id >> a >> b;
			if( !employees[id] ) vc.push_back( id );
			employees[id] += a * b;	
		}
		for(int i=0 ; i<vc.size() ; ++i ){
			if( employees[ vc[i] ] >= 1000000 ){
				cout << vc[i] << endl;
				flag = false;
			}
		}
		if( flag ){
			cout << "NA" << endl;
		}
	}
}