#include <iostream>
using namespace std;

int n;
int main(){
	cin >> n;
	int id[n];
	int p[n];
	int q[n];
	int num = 0;
	for(int i = 0; i < n; i++){
		cin >> id[i] >> p[i] >> q[i];
		if(p[i] * q[i] >= 1000000){
			cout << id[i] << "\n";
			num++;
		} 
	}
	if(num == 0){
		cout << "NA";
	} 
    return 0;
}