#include <iostream>
using namespace std;

int main()
{
	while ( true )
	{
		int n; cin>>n;
		if ( n == 0 )
			break;
		bool f = false;
		for ( int i=0; i<n; i++ )
		{
			int a, b, c;
			cin>>a>>b>>c;
			if ( (long long)b*c>=1000000 )
				cout << a << endl,
				f = true;
		}
		if ( ! f )
			cout << "NA" << endl;
	}
}