#include <iostream>
#include <set>
using namespace std;
int main( void )
{
	int n;
	while ( cin >> n && n != 0 )
	{
		set <int> T;

		bool exist = false;
		for ( int i = 0; i < n; i++ )
		{
			int no, price, items;
			cin >> no >> price >> items;

			if ( price <= 1000000 && items <= 100000 )
			{
				long long profit = (long long)price * items;
				if ( T.find( no ) == T.end() && profit >= 1000000L )
				{
					exist = true;
					cout << no << endl;
					T.insert( no );
				}
			}
		}

		if ( exist == false )
			cout << "NA" << endl;
	}

	return 0;
}