#include <iostream>
using namespace std;

struct data{
	int id;
	int value;
	int num;
};

int main(){
	int n;
	int need;
	int officer[4000];
	while(cin >> n){
		if(n == 0) break;
		int count = 0;
		for(int i = 0; i < n; i++){
			data d;
			cin >> d.id >>
				d.value >> d.num;
			if(d.value > 0){
				need = 1000000 % d.value == 0 ? 1000000 / d.value : 1000000 / d.value + 1;
				if(d.num >= need){
					count++;
					officer[count] = d.id;
				}
			}
		}
		if(!count){
			cout << "NA" << endl;
		} else {
			for(int i = 1; i <= count; i++)
				cout << officer[i] << endl;
		}
	}
	return 0;
}