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<algorithm>
#include<iostream>
#include<vector>
#include<cstring>

typedef long long ll;

int n;
ll p[4000];
std::vector<int> ord;
bool used[4000];

int main()
{
	while( std::cin >> n, n )
	{
		memset( p, 0, sizeof( p ) );
		memset( used, false, sizeof( used ) ); 
		ord.clear();

		for( ll a, b, c, i = 0; i < n; ++i )
		{
			std::cin >> a >> b >> c;
			p[a-1] += b * c;
			ord.push_back( a - 1 );
		}

		bool fl = false;
		for( int i = 0; i != ord.size(); ++i )
			if( !used[ord[i]] && p[ord[i]] >= 1000000 )
				std::cout << ord[i] + 1 << std::endl, used[ord[i]] = true, fl = true;

		if( !fl )
			std::cout << "NA" << std::endl;
	}
	return 0;
}