#include <iostream>
using namespace std;
int main()
{
	int a, b, c, n, i, f;
	while (cin >> n && n)
	{
		int m[4000];
		f = 0;
		for (i = 0; i < n; i++)
		{
			cin >> a >> b >> c;
			if (b * c >= 1000000)
			{
				m[f] = a;
				f++;
			}
		}
		if (f <= 0)
			cout << "NA" << endl;
		else
			for (i = 0; i < f; i++)
				cout << m[i] << endl;
	}
}