#include <iostream>
using namespace std;

const int BORDER = 1000000;

int main()
{
	int n;

	while( cin >> n && n ){
		int id, unit, amount, cnt = 0;
		int* list = new int[ n ];
		for( int i = 0; i < n; ++i ){
			cin >> id >> unit >> amount;
			if( unit * amount >= BORDER ){
				list[ cnt ] = id;
				++cnt;
			}
		}
		if( cnt != 0 ){
			for( int i = 0; i < cnt; ++i ){
				cout << list[ i ] << endl;
			}
		}else{
			cout << "NA" << endl;
		}
		delete[] list;
	}

	return 0;
}