#include <iostream>
#include <map>
using namespace std;

int main() {
    int N;
    while (cin >> N && N != 0) {
        cin.get();
        string result, i;
        map<string, long long> sales;
 	long long p, q;
        for (int n = 0; n != N; ++n) {
            cin >> i >> p >> q;
            sales[i] += p * q;
        }

	bool printNA = true;
        for (map<string, long long>::iterator it=sales.begin(); it!=sales.end(); ++it) {
            if (it->second >= 1000000) {
		cout << it->first << endl;
		printNA = false;
            }
        }

        if (printNA) {
            cout << "NA" << endl;
        }
    }
    return 0;
}