/*
	0100:Sale Result
*/
#include	<iostream>
#include	<map>

using namespace std;

int main(void) {
	int n;
	while(1) {
		bool isOK = false;
		map<int, long> MP;
		
		cin >> n;
		
		if(n == 0) { break; }
		
		for(int i = 0; i < n; i++) {
			int n, p, c;
			cin >> n >> p >> c;
			MP[n] += p * c;
		}
		for(map<int, long>::iterator it = MP.begin(); it != MP.end(); it++) {
			if(it->second >= 1000000) {
				cout << it->first << endl;
				isOK = true;
			}
		}
		if(isOK == false) {
			cout << "NA" << endl;
		}
	}
	return 0;
}