#include <iostream>
using namespace std;

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